Home / 102,821.45-141,909.66-62,547.84

Finding the Fourth Proportional to 102,821.45, 141,909.66 and 62,547.84

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Solution

The fourth proportional to 102,821.45, 141,909.66 and 62,547.84 is: 86,325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,821.45 : 141,909.66 = 62,547.84 : x
  2. Step 2: Convert to fraction form
    102,821.45/141,909.66 = 62,547.84/x
  3. Step 3: Cross multiply
    102,821.45x = 141,909.66 × 62,547.84
  4. Step 4: Simplify right side
    102,821.45x = 8,876,142,708.13
  5. Step 5: Solve for x
    x = 8,876,142,708.13/102,821.45
  6. Step 6: Final answer
    x = 86,325.79

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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.