Home / 115,294.32-159,104.04-64,993.36

Finding the Fourth Proportional to 115,294.32, 159,104.04 and 64,993.36

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Solution

The fourth proportional to 115,294.32, 159,104.04 and 64,993.36 is: 89,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,294.32 : 159,104.04 = 64,993.36 : x
  2. Step 2: Convert to fraction form
    115,294.32/159,104.04 = 64,993.36/x
  3. Step 3: Cross multiply
    115,294.32x = 159,104.04 × 64,993.36
  4. Step 4: Simplify right side
    115,294.32x = 10,340,706,149.17
  5. Step 5: Solve for x
    x = 10,340,706,149.17/115,294.32
  6. Step 6: Final answer
    x = 89,689.64

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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.