Home / 102,180.91-140,929.77-66,382.46

Finding the Fourth Proportional to 102,180.91, 140,929.77 and 66,382.46

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Solution

The fourth proportional to 102,180.91, 140,929.77 and 66,382.46 is: 91,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,180.91 : 140,929.77 = 66,382.46 : x
  2. Step 2: Convert to fraction form
    102,180.91/140,929.77 = 66,382.46/x
  3. Step 3: Cross multiply
    102,180.91x = 140,929.77 × 66,382.46
  4. Step 4: Simplify right side
    102,180.91x = 9,355,264,281.14
  5. Step 5: Solve for x
    x = 9,355,264,281.14/102,180.91
  6. Step 6: Final answer
    x = 91,555.89

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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.