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Finding the Fourth Proportional to 181,146.67, 249,990.21 and 100,574.19

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Solution

The fourth proportional to 181,146.67, 249,990.21 and 100,574.19 is: 138,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,146.67 : 249,990.21 = 100,574.19 : x
  2. Step 2: Convert to fraction form
    181,146.67/249,990.21 = 100,574.19/x
  3. Step 3: Cross multiply
    181,146.67x = 249,990.21 × 100,574.19
  4. Step 4: Simplify right side
    181,146.67x = 25,142,562,878.68
  5. Step 5: Solve for x
    x = 25,142,562,878.68/181,146.67
  6. Step 6: Final answer
    x = 138,796.72

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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.