Home / 157,942.71-217,957.55-89,031.69

Finding the Fourth Proportional to 157,942.71, 217,957.55 and 89,031.69

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Solution

The fourth proportional to 157,942.71, 217,957.55 and 89,031.69 is: 122,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,942.71 : 217,957.55 = 89,031.69 : x
  2. Step 2: Convert to fraction form
    157,942.71/217,957.55 = 89,031.69/x
  3. Step 3: Cross multiply
    157,942.71x = 217,957.55 × 89,031.69
  4. Step 4: Simplify right side
    157,942.71x = 19,405,128,579.60
  5. Step 5: Solve for x
    x = 19,405,128,579.60/157,942.71
  6. Step 6: Final answer
    x = 122,861.82

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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.