Home / 115,618.40-173,265.60-91,966.40

Finding the Fourth Proportional to 115,618.40, 173,265.60 and 91,966.40

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Solution

The fourth proportional to 115,618.40, 173,265.60 and 91,966.40 is: 137,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,618.40 : 173,265.60 = 91,966.40 : x
  2. Step 2: Convert to fraction form
    115,618.40/173,265.60 = 91,966.40/x
  3. Step 3: Cross multiply
    115,618.40x = 173,265.60 × 91,966.40
  4. Step 4: Simplify right side
    115,618.40x = 15,934,613,475.84
  5. Step 5: Solve for x
    x = 15,934,613,475.84/115,618.40
  6. Step 6: Final answer
    x = 137,820.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.