Home / 83,880.12-125,820.18-75,559.80

Finding the Fourth Proportional to 83,880.12, 125,820.18 and 75,559.80

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Solution

The fourth proportional to 83,880.12, 125,820.18 and 75,559.80 is: 113,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,880.12 : 125,820.18 = 75,559.80 : x
  2. Step 2: Convert to fraction form
    83,880.12/125,820.18 = 75,559.80/x
  3. Step 3: Cross multiply
    83,880.12x = 125,820.18 × 75,559.80
  4. Step 4: Simplify right side
    83,880.12x = 9,506,947,636.76
  5. Step 5: Solve for x
    x = 9,506,947,636.76/83,880.12
  6. Step 6: Final answer
    x = 113,339.70

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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.