Home / 133,209.26-199,641.65-99,666.15

Finding the Fourth Proportional to 133,209.26, 199,641.65 and 99,666.15

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Solution

The fourth proportional to 133,209.26, 199,641.65 and 99,666.15 is: 149,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,209.26 : 199,641.65 = 99,666.15 : x
  2. Step 2: Convert to fraction form
    133,209.26/199,641.65 = 99,666.15/x
  3. Step 3: Cross multiply
    133,209.26x = 199,641.65 × 99,666.15
  4. Step 4: Simplify right side
    133,209.26x = 19,897,514,884.31
  5. Step 5: Solve for x
    x = 19,897,514,884.31/133,209.26
  6. Step 6: Final answer
    x = 149,370.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.