Home / 115,354.40-159,151.82-64,358.88

Finding the Fourth Proportional to 115,354.40, 159,151.82 and 64,358.88

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Solution

The fourth proportional to 115,354.40, 159,151.82 and 64,358.88 is: 88,794.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,354.40 : 159,151.82 = 64,358.88 : x
  2. Step 2: Convert to fraction form
    115,354.40/159,151.82 = 64,358.88/x
  3. Step 3: Cross multiply
    115,354.40x = 159,151.82 × 64,358.88
  4. Step 4: Simplify right side
    115,354.40x = 10,242,832,885.16
  5. Step 5: Solve for x
    x = 10,242,832,885.16/115,354.40
  6. Step 6: Final answer
    x = 88,794.47

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1.5x scale

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.