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Finding the Fourth Proportional to 181,057.75, 249,686.12 and 108,449.05

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Solution

The fourth proportional to 181,057.75, 249,686.12 and 108,449.05 is: 149,555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,057.75 : 249,686.12 = 108,449.05 : x
  2. Step 2: Convert to fraction form
    181,057.75/249,686.12 = 108,449.05/x
  3. Step 3: Cross multiply
    181,057.75x = 249,686.12 × 108,449.05
  4. Step 4: Simplify right side
    181,057.75x = 27,078,222,159.09
  5. Step 5: Solve for x
    x = 27,078,222,159.09/181,057.75
  6. Step 6: Final answer
    x = 149,555.72

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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.