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Finding the Fourth Proportional to 172,602.76, 238,192.68 and 100,968.88

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Solution

The fourth proportional to 172,602.76, 238,192.68 and 100,968.88 is: 139,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,602.76 : 238,192.68 = 100,968.88 : x
  2. Step 2: Convert to fraction form
    172,602.76/238,192.68 = 100,968.88/x
  3. Step 3: Cross multiply
    172,602.76x = 238,192.68 × 100,968.88
  4. Step 4: Simplify right side
    172,602.76x = 24,050,048,123.80
  5. Step 5: Solve for x
    x = 24,050,048,123.80/172,602.76
  6. Step 6: Final answer
    x = 139,337.56

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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.