Home / 130,733.28-180,410.76-74,145.06

Finding the Fourth Proportional to 130,733.28, 180,410.76 and 74,145.06

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Solution

The fourth proportional to 130,733.28, 180,410.76 and 74,145.06 is: 102,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,733.28 : 180,410.76 = 74,145.06 : x
  2. Step 2: Convert to fraction form
    130,733.28/180,410.76 = 74,145.06/x
  3. Step 3: Cross multiply
    130,733.28x = 180,410.76 × 74,145.06
  4. Step 4: Simplify right side
    130,733.28x = 13,376,566,624.85
  5. Step 5: Solve for x
    x = 13,376,566,624.85/130,733.28
  6. Step 6: Final answer
    x = 102,319.52

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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.