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Finding the Fourth Proportional to 185,987.80, 256,660.14 and 101,107

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Solution

The fourth proportional to 185,987.80, 256,660.14 and 101,107 is: 139,526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,987.80 : 256,660.14 = 101,107 : x
  2. Step 2: Convert to fraction form
    185,987.80/256,660.14 = 101,107/x
  3. Step 3: Cross multiply
    185,987.80x = 256,660.14 × 101,107
  4. Step 4: Simplify right side
    185,987.80x = 25,950,136,774.98
  5. Step 5: Solve for x
    x = 25,950,136,774.98/185,987.80
  6. Step 6: Final answer
    x = 139,526.02

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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.