Home / 181,015.97-249,790.03-100,438.38

Finding the Fourth Proportional to 181,015.97, 249,790.03 and 100,438.38

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Solution

The fourth proportional to 181,015.97, 249,790.03 and 100,438.38 is: 138,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,015.97 : 249,790.03 = 100,438.38 : x
  2. Step 2: Convert to fraction form
    181,015.97/249,790.03 = 100,438.38/x
  3. Step 3: Cross multiply
    181,015.97x = 249,790.03 × 100,438.38
  4. Step 4: Simplify right side
    181,015.97x = 25,088,505,702.26
  5. Step 5: Solve for x
    x = 25,088,505,702.26/181,015.97
  6. Step 6: Final answer
    x = 138,598.30

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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.