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Finding the Fourth Proportional to 102,034.88, 153,156 and 72,486.08

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Solution

The fourth proportional to 102,034.88, 153,156 and 72,486.08 is: 108,802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,034.88 : 153,156 = 72,486.08 : x
  2. Step 2: Convert to fraction form
    102,034.88/153,156 = 72,486.08/x
  3. Step 3: Cross multiply
    102,034.88x = 153,156 × 72,486.08
  4. Step 4: Simplify right side
    102,034.88x = 11,101,678,068.48
  5. Step 5: Solve for x
    x = 11,101,678,068.48/102,034.88
  6. Step 6: Final answer
    x = 108,802.77

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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.