Home / 172,880.32-238,593.92-100,299.20

Finding the Fourth Proportional to 172,880.32, 238,593.92 and 100,299.20

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Solution

The fourth proportional to 172,880.32, 238,593.92 and 100,299.20 is: 138,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,880.32 : 238,593.92 = 100,299.20 : x
  2. Step 2: Convert to fraction form
    172,880.32/238,593.92 = 100,299.20/x
  3. Step 3: Cross multiply
    172,880.32x = 238,593.92 × 100,299.20
  4. Step 4: Simplify right side
    172,880.32x = 23,930,779,300.86
  5. Step 5: Solve for x
    x = 23,930,779,300.86/172,880.32
  6. Step 6: Final answer
    x = 138,423.96

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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.