Home / 90,710.13-136,000.17-42,651.84

Finding the Fourth Proportional to 90,710.13, 136,000.17 and 42,651.84

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Solution

The fourth proportional to 90,710.13, 136,000.17 and 42,651.84 is: 63,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,710.13 : 136,000.17 = 42,651.84 : x
  2. Step 2: Convert to fraction form
    90,710.13/136,000.17 = 42,651.84/x
  3. Step 3: Cross multiply
    90,710.13x = 136,000.17 × 42,651.84
  4. Step 4: Simplify right side
    90,710.13x = 5,800,657,490.81
  5. Step 5: Solve for x
    x = 5,800,657,490.81/90,710.13
  6. Step 6: Final answer
    x = 63,947.19

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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.