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Finding the Fourth Proportional to 145,850.40, 218,516.40 and 125,114.40

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Solution

The fourth proportional to 145,850.40, 218,516.40 and 125,114.40 is: 187,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.40 : 218,516.40 = 125,114.40 : x
  2. Step 2: Convert to fraction form
    145,850.40/218,516.40 = 125,114.40/x
  3. Step 3: Cross multiply
    145,850.40x = 218,516.40 × 125,114.40
  4. Step 4: Simplify right side
    145,850.40x = 27,339,548,276.16
  5. Step 5: Solve for x
    x = 27,339,548,276.16/145,850.40
  6. Step 6: Final answer
    x = 187,449.25

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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.