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Finding the Fourth Proportional to 181,066.68, 249,868.26 and 100,489.52

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Solution

The fourth proportional to 181,066.68, 249,868.26 and 100,489.52 is: 138,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,066.68 : 249,868.26 = 100,489.52 : x
  2. Step 2: Convert to fraction form
    181,066.68/249,868.26 = 100,489.52/x
  3. Step 3: Cross multiply
    181,066.68x = 249,868.26 × 100,489.52
  4. Step 4: Simplify right side
    181,066.68x = 25,109,141,510.64
  5. Step 5: Solve for x
    x = 25,109,141,510.64/181,066.68
  6. Step 6: Final answer
    x = 138,673.45

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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.