Home / 157,451.24-217,276.50-85,829.72

Finding the Fourth Proportional to 157,451.24, 217,276.50 and 85,829.72

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Solution

The fourth proportional to 157,451.24, 217,276.50 and 85,829.72 is: 118,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,451.24 : 217,276.50 = 85,829.72 : x
  2. Step 2: Convert to fraction form
    157,451.24/217,276.50 = 85,829.72/x
  3. Step 3: Cross multiply
    157,451.24x = 217,276.50 × 85,829.72
  4. Step 4: Simplify right side
    157,451.24x = 18,648,781,157.58
  5. Step 5: Solve for x
    x = 18,648,781,157.58/157,451.24
  6. Step 6: Final answer
    x = 118,441.63

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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.