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Finding the Fourth Proportional to 173,084.76, 238,878.90 and 100,472.16

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Solution

The fourth proportional to 173,084.76, 238,878.90 and 100,472.16 is: 138,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,084.76 : 238,878.90 = 100,472.16 : x
  2. Step 2: Convert to fraction form
    173,084.76/238,878.90 = 100,472.16/x
  3. Step 3: Cross multiply
    173,084.76x = 238,878.90 × 100,472.16
  4. Step 4: Simplify right side
    173,084.76x = 24,000,679,061.42
  5. Step 5: Solve for x
    x = 24,000,679,061.42/173,084.76
  6. Step 6: Final answer
    x = 138,664.31

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1.5x scale

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.