Home / 115,191.47-158,959.11-64,209.77

Finding the Fourth Proportional to 115,191.47, 158,959.11 and 64,209.77

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Solution

The fourth proportional to 115,191.47, 158,959.11 and 64,209.77 is: 88,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.47 : 158,959.11 = 64,209.77 : x
  2. Step 2: Convert to fraction form
    115,191.47/158,959.11 = 64,209.77/x
  3. Step 3: Cross multiply
    115,191.47x = 158,959.11 × 64,209.77
  4. Step 4: Simplify right side
    115,191.47x = 10,206,727,097.71
  5. Step 5: Solve for x
    x = 10,206,727,097.71/115,191.47
  6. Step 6: Final answer
    x = 88,606.62

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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.