Home / 102,780.65-141,881.02-62,507.35

Finding the Fourth Proportional to 102,780.65, 141,881.02 and 62,507.35

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Solution

The fourth proportional to 102,780.65, 141,881.02 and 62,507.35 is: 86,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,780.65 : 141,881.02 = 62,507.35 : x
  2. Step 2: Convert to fraction form
    102,780.65/141,881.02 = 62,507.35/x
  3. Step 3: Cross multiply
    102,780.65x = 141,881.02 × 62,507.35
  4. Step 4: Simplify right side
    102,780.65x = 8,868,605,798.50
  5. Step 5: Solve for x
    x = 8,868,605,798.50/102,780.65
  6. Step 6: Final answer
    x = 86,286.73

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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.