Home / 140,670.18-194,127.57-77,006.61

Finding the Fourth Proportional to 140,670.18, 194,127.57 and 77,006.61

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Solution

The fourth proportional to 140,670.18, 194,127.57 and 77,006.61 is: 106,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,670.18 : 194,127.57 = 77,006.61 : x
  2. Step 2: Convert to fraction form
    140,670.18/194,127.57 = 77,006.61/x
  3. Step 3: Cross multiply
    140,670.18x = 194,127.57 × 77,006.61
  4. Step 4: Simplify right side
    140,670.18x = 14,949,106,073.24
  5. Step 5: Solve for x
    x = 14,949,106,073.24/140,670.18
  6. Step 6: Final answer
    x = 106,270.61

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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.