Home / 141,400.65-195,127.92-77,737.98

Finding the Fourth Proportional to 141,400.65, 195,127.92 and 77,737.98

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Solution

The fourth proportional to 141,400.65, 195,127.92 and 77,737.98 is: 107,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,400.65 : 195,127.92 = 77,737.98 : x
  2. Step 2: Convert to fraction form
    141,400.65/195,127.92 = 77,737.98/x
  3. Step 3: Cross multiply
    141,400.65x = 195,127.92 × 77,737.98
  4. Step 4: Simplify right side
    141,400.65x = 15,168,850,342.40
  5. Step 5: Solve for x
    x = 15,168,850,342.40/141,400.65
  6. Step 6: Final answer
    x = 107,275.68

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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.