Home / 102,882.56-141,929.98-66,595.72

Finding the Fourth Proportional to 102,882.56, 141,929.98 and 66,595.72

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Solution

The fourth proportional to 102,882.56, 141,929.98 and 66,595.72 is: 91,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,882.56 : 141,929.98 = 66,595.72 : x
  2. Step 2: Convert to fraction form
    102,882.56/141,929.98 = 66,595.72/x
  3. Step 3: Cross multiply
    102,882.56x = 141,929.98 × 66,595.72
  4. Step 4: Simplify right side
    102,882.56x = 9,451,929,139.79
  5. Step 5: Solve for x
    x = 9,451,929,139.79/102,882.56
  6. Step 6: Final answer
    x = 91,871.05

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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.