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Finding the Fourth Proportional to 181,412.80, 272,119.20 and 125,425.60

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Solution

The fourth proportional to 181,412.80, 272,119.20 and 125,425.60 is: 188,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,412.80 : 272,119.20 = 125,425.60 : x
  2. Step 2: Convert to fraction form
    181,412.80/272,119.20 = 125,425.60/x
  3. Step 3: Cross multiply
    181,412.80x = 272,119.20 × 125,425.60
  4. Step 4: Simplify right side
    181,412.80x = 34,130,713,931.52
  5. Step 5: Solve for x
    x = 34,130,713,931.52/181,412.80
  6. Step 6: Final answer
    x = 188,138.40

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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.