Home / 87,010.30-130,515.45-74,325.70

Finding the Fourth Proportional to 87,010.30, 130,515.45 and 74,325.70

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Solution

The fourth proportional to 87,010.30, 130,515.45 and 74,325.70 is: 111,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,010.30 : 130,515.45 = 74,325.70 : x
  2. Step 2: Convert to fraction form
    87,010.30/130,515.45 = 74,325.70/x
  3. Step 3: Cross multiply
    87,010.30x = 130,515.45 × 74,325.70
  4. Step 4: Simplify right side
    87,010.30x = 9,700,652,182.07
  5. Step 5: Solve for x
    x = 9,700,652,182.07/87,010.30
  6. Step 6: Final answer
    x = 111,488.55

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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.