Home / 124,724.80-187,087.20-111,505.60

Finding the Fourth Proportional to 124,724.80, 187,087.20 and 111,505.60

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Solution

The fourth proportional to 124,724.80, 187,087.20 and 111,505.60 is: 167,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,724.80 : 187,087.20 = 111,505.60 : x
  2. Step 2: Convert to fraction form
    124,724.80/187,087.20 = 111,505.60/x
  3. Step 3: Cross multiply
    124,724.80x = 187,087.20 × 111,505.60
  4. Step 4: Simplify right side
    124,724.80x = 20,861,270,488.32
  5. Step 5: Solve for x
    x = 20,861,270,488.32/124,724.80
  6. Step 6: Final answer
    x = 167,258.40

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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.