Home / 157,276.48-217,045.68-85,659.52

Finding the Fourth Proportional to 157,276.48, 217,045.68 and 85,659.52

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Solution

The fourth proportional to 157,276.48, 217,045.68 and 85,659.52 is: 118,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,276.48 : 217,045.68 = 85,659.52 : x
  2. Step 2: Convert to fraction form
    157,276.48/217,045.68 = 85,659.52/x
  3. Step 3: Cross multiply
    157,276.48x = 217,045.68 × 85,659.52
  4. Step 4: Simplify right side
    157,276.48x = 18,592,028,766.87
  5. Step 5: Solve for x
    x = 18,592,028,766.87/157,276.48
  6. Step 6: Final answer
    x = 118,212.39

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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.