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Finding the Fourth Proportional to 181,302.54, 249,995.80 and 123,951.20

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Solution

The fourth proportional to 181,302.54, 249,995.80 and 123,951.20 is: 170,914.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,302.54 : 249,995.80 = 123,951.20 : x
  2. Step 2: Convert to fraction form
    181,302.54/249,995.80 = 123,951.20/x
  3. Step 3: Cross multiply
    181,302.54x = 249,995.80 × 123,951.20
  4. Step 4: Simplify right side
    181,302.54x = 30,987,278,309.92
  5. Step 5: Solve for x
    x = 30,987,278,309.92/181,302.54
  6. Step 6: Final answer
    x = 170,914.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.