Home / 83,465.10-125,322.73-72,255.03

Finding the Fourth Proportional to 83,465.10, 125,322.73 and 72,255.03

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Solution

The fourth proportional to 83,465.10, 125,322.73 and 72,255.03 is: 108,490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,465.10 : 125,322.73 = 72,255.03 : x
  2. Step 2: Convert to fraction form
    83,465.10/125,322.73 = 72,255.03/x
  3. Step 3: Cross multiply
    83,465.10x = 125,322.73 × 72,255.03
  4. Step 4: Simplify right side
    83,465.10x = 9,055,197,615.83
  5. Step 5: Solve for x
    x = 9,055,197,615.83/83,465.10
  6. Step 6: Final answer
    x = 108,490.83

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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.