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Finding the Fourth Proportional to 173,680, 239,678.72 and 94,192

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Solution

The fourth proportional to 173,680, 239,678.72 and 94,192 is: 129,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,680 : 239,678.72 = 94,192 : x
  2. Step 2: Convert to fraction form
    173,680/239,678.72 = 94,192/x
  3. Step 3: Cross multiply
    173,680x = 239,678.72 × 94,192
  4. Step 4: Simplify right side
    173,680x = 22,575,817,994.24
  5. Step 5: Solve for x
    x = 22,575,817,994.24/173,680
  6. Step 6: Final answer
    x = 129,985.13

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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.