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Finding the Fourth Proportional to 172,748, 238,451.90 and 101,151.04

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Solution

The fourth proportional to 172,748, 238,451.90 and 101,151.04 is: 139,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,748 : 238,451.90 = 101,151.04 : x
  2. Step 2: Convert to fraction form
    172,748/238,451.90 = 101,151.04/x
  3. Step 3: Cross multiply
    172,748x = 238,451.90 × 101,151.04
  4. Step 4: Simplify right side
    172,748x = 24,119,657,674.98
  5. Step 5: Solve for x
    x = 24,119,657,674.98/172,748
  6. Step 6: Final answer
    x = 139,623.37

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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.