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Finding the Fourth Proportional to 144,373.76, 216,462.08 and 76,915.88

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Solution

The fourth proportional to 144,373.76, 216,462.08 and 76,915.88 is: 115,321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,373.76 : 216,462.08 = 76,915.88 : x
  2. Step 2: Convert to fraction form
    144,373.76/216,462.08 = 76,915.88/x
  3. Step 3: Cross multiply
    144,373.76x = 216,462.08 × 76,915.88
  4. Step 4: Simplify right side
    144,373.76x = 16,649,371,369.83
  5. Step 5: Solve for x
    x = 16,649,371,369.83/144,373.76
  6. Step 6: Final answer
    x = 115,321.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.