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Finding the Fourth Proportional to 185,988.80, 256,661.52 and 101,108

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Solution

The fourth proportional to 185,988.80, 256,661.52 and 101,108 is: 139,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,988.80 : 256,661.52 = 101,108 : x
  2. Step 2: Convert to fraction form
    185,988.80/256,661.52 = 101,108/x
  3. Step 3: Cross multiply
    185,988.80x = 256,661.52 × 101,108
  4. Step 4: Simplify right side
    185,988.80x = 25,950,532,964.16
  5. Step 5: Solve for x
    x = 25,950,532,964.16/185,988.80
  6. Step 6: Final answer
    x = 139,527.40

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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.