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Finding the Fourth Proportional to 181,066.68, 249,868.26 and 100,489.48

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Solution

The fourth proportional to 181,066.68, 249,868.26 and 100,489.48 is: 138,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,066.68 : 249,868.26 = 100,489.48 : x
  2. Step 2: Convert to fraction form
    181,066.68/249,868.26 = 100,489.48/x
  3. Step 3: Cross multiply
    181,066.68x = 249,868.26 × 100,489.48
  4. Step 4: Simplify right side
    181,066.68x = 25,109,131,515.90
  5. Step 5: Solve for x
    x = 25,109,131,515.90/181,066.68
  6. Step 6: Final answer
    x = 138,673.40

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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.