Home / 90,777.40-136,166.10-73,281.40

Finding the Fourth Proportional to 90,777.40, 136,166.10 and 73,281.40

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Solution

The fourth proportional to 90,777.40, 136,166.10 and 73,281.40 is: 109,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,777.40 : 136,166.10 = 73,281.40 : x
  2. Step 2: Convert to fraction form
    90,777.40/136,166.10 = 73,281.40/x
  3. Step 3: Cross multiply
    90,777.40x = 136,166.10 × 73,281.40
  4. Step 4: Simplify right side
    90,777.40x = 9,978,442,440.54
  5. Step 5: Solve for x
    x = 9,978,442,440.54/90,777.40
  6. Step 6: Final answer
    x = 109,922.10

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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.