Home / 117,881.28-162,678.24-64,167.84

Finding the Fourth Proportional to 117,881.28, 162,678.24 and 64,167.84

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Solution

The fourth proportional to 117,881.28, 162,678.24 and 64,167.84 is: 88,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,881.28 : 162,678.24 = 64,167.84 : x
  2. Step 2: Convert to fraction form
    117,881.28/162,678.24 = 64,167.84/x
  3. Step 3: Cross multiply
    117,881.28x = 162,678.24 × 64,167.84
  4. Step 4: Simplify right side
    117,881.28x = 10,438,711,275.80
  5. Step 5: Solve for x
    x = 10,438,711,275.80/117,881.28
  6. Step 6: Final answer
    x = 88,552.75

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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.