Home / 136,218.80-204,328.20-42,724.40

Finding the Fourth Proportional to 136,218.80, 204,328.20 and 42,724.40

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Solution

The fourth proportional to 136,218.80, 204,328.20 and 42,724.40 is: 64,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,218.80 : 204,328.20 = 42,724.40 : x
  2. Step 2: Convert to fraction form
    136,218.80/204,328.20 = 42,724.40/x
  3. Step 3: Cross multiply
    136,218.80x = 204,328.20 × 42,724.40
  4. Step 4: Simplify right side
    136,218.80x = 8,729,799,748.08
  5. Step 5: Solve for x
    x = 8,729,799,748.08/136,218.80
  6. Step 6: Final answer
    x = 64,086.60

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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.