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Finding the Fourth Proportional to 181,089.80, 249,903.73 and 100,517.13

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Solution

The fourth proportional to 181,089.80, 249,903.73 and 100,517.13 is: 138,713.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,089.80 : 249,903.73 = 100,517.13 : x
  2. Step 2: Convert to fraction form
    181,089.80/249,903.73 = 100,517.13/x
  3. Step 3: Cross multiply
    181,089.80x = 249,903.73 × 100,517.13
  4. Step 4: Simplify right side
    181,089.80x = 25,119,605,464.60
  5. Step 5: Solve for x
    x = 25,119,605,464.60/181,089.80
  6. Step 6: Final answer
    x = 138,713.53

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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.