Home / 181,002.12-249,779.71-100,428.24

Finding the Fourth Proportional to 181,002.12, 249,779.71 and 100,428.24

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Solution

The fourth proportional to 181,002.12, 249,779.71 and 100,428.24 is: 138,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,002.12 : 249,779.71 = 100,428.24 : x
  2. Step 2: Convert to fraction form
    181,002.12/249,779.71 = 100,428.24/x
  3. Step 3: Cross multiply
    181,002.12x = 249,779.71 × 100,428.24
  4. Step 4: Simplify right side
    181,002.12x = 25,084,936,663.01
  5. Step 5: Solve for x
    x = 25,084,936,663.01/181,002.12
  6. Step 6: Final answer
    x = 138,589.19

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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.