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Finding the Fourth Proportional to 172,739, 238,439.48 and 101,142.04

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Solution

The fourth proportional to 172,739, 238,439.48 and 101,142.04 is: 139,610.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,739 : 238,439.48 = 101,142.04 : x
  2. Step 2: Convert to fraction form
    172,739/238,439.48 = 101,142.04/x
  3. Step 3: Cross multiply
    172,739x = 238,439.48 × 101,142.04
  4. Step 4: Simplify right side
    172,739x = 24,116,255,423.74
  5. Step 5: Solve for x
    x = 24,116,255,423.74/172,739
  6. Step 6: Final answer
    x = 139,610.95

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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.