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Finding the Fourth Proportional to 144,060.32, 216,125.04 and 55,314.56

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Solution

The fourth proportional to 144,060.32, 216,125.04 and 55,314.56 is: 82,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,060.32 : 216,125.04 = 55,314.56 : x
  2. Step 2: Convert to fraction form
    144,060.32/216,125.04 = 55,314.56/x
  3. Step 3: Cross multiply
    144,060.32x = 216,125.04 × 55,314.56
  4. Step 4: Simplify right side
    144,060.32x = 11,954,861,492.58
  5. Step 5: Solve for x
    x = 11,954,861,492.58/144,060.32
  6. Step 6: Final answer
    x = 82,985.11

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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.