Home / 181,020.07-249,808.10-100,447.80

Finding the Fourth Proportional to 181,020.07, 249,808.10 and 100,447.80

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Solution

The fourth proportional to 181,020.07, 249,808.10 and 100,447.80 is: 138,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,020.07 : 249,808.10 = 100,447.80 : x
  2. Step 2: Convert to fraction form
    181,020.07/249,808.10 = 100,447.80/x
  3. Step 3: Cross multiply
    181,020.07x = 249,808.10 × 100,447.80
  4. Step 4: Simplify right side
    181,020.07x = 25,092,673,193.18
  5. Step 5: Solve for x
    x = 25,092,673,193.18/181,020.07
  6. Step 6: Final answer
    x = 138,618.19

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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.