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Finding the Fourth Proportional to 181,074, 249,870.42 and 100,501.56

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Solution

The fourth proportional to 181,074, 249,870.42 and 100,501.56 is: 138,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,074 : 249,870.42 = 100,501.56 : x
  2. Step 2: Convert to fraction form
    181,074/249,870.42 = 100,501.56/x
  3. Step 3: Cross multiply
    181,074x = 249,870.42 × 100,501.56
  4. Step 4: Simplify right side
    181,074x = 25,112,367,007.86
  5. Step 5: Solve for x
    x = 25,112,367,007.86/181,074
  6. Step 6: Final answer
    x = 138,685.66

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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.