Home / 131,011.12-180,790.12-74,416.24

Finding the Fourth Proportional to 131,011.12, 180,790.12 and 74,416.24

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Solution

The fourth proportional to 131,011.12, 180,790.12 and 74,416.24 is: 102,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,011.12 : 180,790.12 = 74,416.24 : x
  2. Step 2: Convert to fraction form
    131,011.12/180,790.12 = 74,416.24/x
  3. Step 3: Cross multiply
    131,011.12x = 180,790.12 × 74,416.24
  4. Step 4: Simplify right side
    131,011.12x = 13,453,720,959.55
  5. Step 5: Solve for x
    x = 13,453,720,959.55/131,011.12
  6. Step 6: Final answer
    x = 102,691.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.