Home / 83,465.29-125,323.01-72,255.21

Finding the Fourth Proportional to 83,465.29, 125,323.01 and 72,255.21

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Solution

The fourth proportional to 83,465.29, 125,323.01 and 72,255.21 is: 108,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,465.29 : 125,323.01 = 72,255.21 : x
  2. Step 2: Convert to fraction form
    83,465.29/125,323.01 = 72,255.21/x
  3. Step 3: Cross multiply
    83,465.29x = 125,323.01 × 72,255.21
  4. Step 4: Simplify right side
    83,465.29x = 9,055,240,405.38
  5. Step 5: Solve for x
    x = 9,055,240,405.38/83,465.29
  6. Step 6: Final answer
    x = 108,491.09

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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.