Home / 83,669.80-125,140.20-74,848.90

Finding the Fourth Proportional to 83,669.80, 125,140.20 and 74,848.90

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Solution

The fourth proportional to 83,669.80, 125,140.20 and 74,848.90 is: 111,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,669.80 : 125,140.20 = 74,848.90 : x
  2. Step 2: Convert to fraction form
    83,669.80/125,140.20 = 74,848.90/x
  3. Step 3: Cross multiply
    83,669.80x = 125,140.20 × 74,848.90
  4. Step 4: Simplify right side
    83,669.80x = 9,366,606,315.78
  5. Step 5: Solve for x
    x = 9,366,606,315.78/83,669.80
  6. Step 6: Final answer
    x = 111,947.28

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1.5x scale

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.