Home / 157,125.90-216,833.34-85,505.58

Finding the Fourth Proportional to 157,125.90, 216,833.34 and 85,505.58

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Solution

The fourth proportional to 157,125.90, 216,833.34 and 85,505.58 is: 117,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,125.90 : 216,833.34 = 85,505.58 : x
  2. Step 2: Convert to fraction form
    157,125.90/216,833.34 = 85,505.58/x
  3. Step 3: Cross multiply
    157,125.90x = 216,833.34 × 85,505.58
  4. Step 4: Simplify right side
    157,125.90x = 18,540,460,500.04
  5. Step 5: Solve for x
    x = 18,540,460,500.04/157,125.90
  6. Step 6: Final answer
    x = 117,997.48

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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.