Home / 90,753,131.80-136,129,697.70-74,809,901.80

Finding the Fourth Proportional to 90,753,131.80, 136,129,697.70 and 74,809,901.80

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Solution

The fourth proportional to 90,753,131.80, 136,129,697.70 and 74,809,901.80 is: 112,214,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753,131.80 : 136,129,697.70 = 74,809,901.80 : x
  2. Step 2: Convert to fraction form
    90,753,131.80/136,129,697.70 = 74,809,901.80/x
  3. Step 3: Cross multiply
    90,753,131.80x = 136,129,697.70 × 74,809,901.80
  4. Step 4: Simplify right side
    90,753,131.80x = 10,183,849,317,000,684
  5. Step 5: Solve for x
    x = 10,183,849,317,000,684/90,753,131.80
  6. Step 6: Final answer
    x = 112,214,852.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.