Home / 83,447.58-115,119.06-73,897.20

Finding the Fourth Proportional to 83,447.58, 115,119.06 and 73,897.20

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Solution

The fourth proportional to 83,447.58, 115,119.06 and 73,897.20 is: 101,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,447.58 : 115,119.06 = 73,897.20 : x
  2. Step 2: Convert to fraction form
    83,447.58/115,119.06 = 73,897.20/x
  3. Step 3: Cross multiply
    83,447.58x = 115,119.06 × 73,897.20
  4. Step 4: Simplify right side
    83,447.58x = 8,506,976,200.63
  5. Step 5: Solve for x
    x = 8,506,976,200.63/83,447.58
  6. Step 6: Final answer
    x = 101,943.95

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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.