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Finding the Fourth Proportional to 172,728.99, 238,425.66 and 101,132.01

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Solution

The fourth proportional to 172,728.99, 238,425.66 and 101,132.01 is: 139,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,728.99 : 238,425.66 = 101,132.01 : x
  2. Step 2: Convert to fraction form
    172,728.99/238,425.66 = 101,132.01/x
  3. Step 3: Cross multiply
    172,728.99x = 238,425.66 × 101,132.01
  4. Step 4: Simplify right side
    172,728.99x = 24,112,466,231.38
  5. Step 5: Solve for x
    x = 24,112,466,231.38/172,728.99
  6. Step 6: Final answer
    x = 139,597.10

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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.