Home / 145,233.20-217,266.60-125,728.40

Finding the Fourth Proportional to 145,233.20, 217,266.60 and 125,728.40

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Solution

The fourth proportional to 145,233.20, 217,266.60 and 125,728.40 is: 188,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,233.20 : 217,266.60 = 125,728.40 : x
  2. Step 2: Convert to fraction form
    145,233.20/217,266.60 = 125,728.40/x
  3. Step 3: Cross multiply
    145,233.20x = 217,266.60 × 125,728.40
  4. Step 4: Simplify right side
    145,233.20x = 27,316,581,991.44
  5. Step 5: Solve for x
    x = 27,316,581,991.44/145,233.20
  6. Step 6: Final answer
    x = 188,087.72

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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.