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Finding the Fourth Proportional to 172,077.96, 237,482.30 and 100,480.84

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Solution

The fourth proportional to 172,077.96, 237,482.30 and 100,480.84 is: 138,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,077.96 : 237,482.30 = 100,480.84 : x
  2. Step 2: Convert to fraction form
    172,077.96/237,482.30 = 100,480.84/x
  3. Step 3: Cross multiply
    172,077.96x = 237,482.30 × 100,480.84
  4. Step 4: Simplify right side
    172,077.96x = 23,862,420,989.13
  5. Step 5: Solve for x
    x = 23,862,420,989.13/172,077.96
  6. Step 6: Final answer
    x = 138,672.15

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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.