Home / 124,931.28-172,467.72-84,857.04

Finding the Fourth Proportional to 124,931.28, 172,467.72 and 84,857.04

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Solution

The fourth proportional to 124,931.28, 172,467.72 and 84,857.04 is: 117,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,931.28 : 172,467.72 = 84,857.04 : x
  2. Step 2: Convert to fraction form
    124,931.28/172,467.72 = 84,857.04/x
  3. Step 3: Cross multiply
    124,931.28x = 172,467.72 × 84,857.04
  4. Step 4: Simplify right side
    124,931.28x = 14,635,100,214.75
  5. Step 5: Solve for x
    x = 14,635,100,214.75/124,931.28
  6. Step 6: Final answer
    x = 117,145.20

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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.