Home / 141,484.87-195,248.10-77,821.30

Finding the Fourth Proportional to 141,484.87, 195,248.10 and 77,821.30

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Solution

The fourth proportional to 141,484.87, 195,248.10 and 77,821.30 is: 107,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,484.87 : 195,248.10 = 77,821.30 : x
  2. Step 2: Convert to fraction form
    141,484.87/195,248.10 = 77,821.30/x
  3. Step 3: Cross multiply
    141,484.87x = 195,248.10 × 77,821.30
  4. Step 4: Simplify right side
    141,484.87x = 15,194,460,964.53
  5. Step 5: Solve for x
    x = 15,194,460,964.53/141,484.87
  6. Step 6: Final answer
    x = 107,392.83

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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.