Home / 117,593.28-162,298.08-85,867.20

Finding the Fourth Proportional to 117,593.28, 162,298.08 and 85,867.20

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Solution

The fourth proportional to 117,593.28, 162,298.08 and 85,867.20 is: 118,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,593.28 : 162,298.08 = 85,867.20 : x
  2. Step 2: Convert to fraction form
    117,593.28/162,298.08 = 85,867.20/x
  3. Step 3: Cross multiply
    117,593.28x = 162,298.08 × 85,867.20
  4. Step 4: Simplify right side
    117,593.28x = 13,936,081,694.98
  5. Step 5: Solve for x
    x = 13,936,081,694.98/117,593.28
  6. Step 6: Final answer
    x = 118,510.87

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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.