Home / 115,459.68-159,298.20-67,715.04

Finding the Fourth Proportional to 115,459.68, 159,298.20 and 67,715.04

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Solution

The fourth proportional to 115,459.68, 159,298.20 and 67,715.04 is: 93,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,459.68 : 159,298.20 = 67,715.04 : x
  2. Step 2: Convert to fraction form
    115,459.68/159,298.20 = 67,715.04/x
  3. Step 3: Cross multiply
    115,459.68x = 159,298.20 × 67,715.04
  4. Step 4: Simplify right side
    115,459.68x = 10,786,883,984.93
  5. Step 5: Solve for x
    x = 10,786,883,984.93/115,459.68
  6. Step 6: Final answer
    x = 93,425.55

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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.