Home / 170,956.40-256,434.60-123,717.20

Finding the Fourth Proportional to 170,956.40, 256,434.60 and 123,717.20

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Solution

The fourth proportional to 170,956.40, 256,434.60 and 123,717.20 is: 185,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,956.40 : 256,434.60 = 123,717.20 : x
  2. Step 2: Convert to fraction form
    170,956.40/256,434.60 = 123,717.20/x
  3. Step 3: Cross multiply
    170,956.40x = 256,434.60 × 123,717.20
  4. Step 4: Simplify right side
    170,956.40x = 31,725,370,695.12
  5. Step 5: Solve for x
    x = 31,725,370,695.12/170,956.40
  6. Step 6: Final answer
    x = 185,575.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.