Home / 140,838.67-194,362.10-77,175.91

Finding the Fourth Proportional to 140,838.67, 194,362.10 and 77,175.91

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Solution

The fourth proportional to 140,838.67, 194,362.10 and 77,175.91 is: 106,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,838.67 : 194,362.10 = 77,175.91 : x
  2. Step 2: Convert to fraction form
    140,838.67/194,362.10 = 77,175.91/x
  3. Step 3: Cross multiply
    140,838.67x = 194,362.10 × 77,175.91
  4. Step 4: Simplify right side
    140,838.67x = 15,000,071,937.01
  5. Step 5: Solve for x
    x = 15,000,071,937.01/140,838.67
  6. Step 6: Final answer
    x = 106,505.35

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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.