Home / 124,685.20-186,822.60-72,002.80

Finding the Fourth Proportional to 124,685.20, 186,822.60 and 72,002.80

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Solution

The fourth proportional to 124,685.20, 186,822.60 and 72,002.80 is: 107,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,685.20 : 186,822.60 = 72,002.80 : x
  2. Step 2: Convert to fraction form
    124,685.20/186,822.60 = 72,002.80/x
  3. Step 3: Cross multiply
    124,685.20x = 186,822.60 × 72,002.80
  4. Step 4: Simplify right side
    124,685.20x = 13,451,750,303.28
  5. Step 5: Solve for x
    x = 13,451,750,303.28/124,685.20
  6. Step 6: Final answer
    x = 107,885.70

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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.