Home / 135,445.35-186,909.07-75,012.39

Finding the Fourth Proportional to 135,445.35, 186,909.07 and 75,012.39

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Solution

The fourth proportional to 135,445.35, 186,909.07 and 75,012.39 is: 103,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.35 : 186,909.07 = 75,012.39 : x
  2. Step 2: Convert to fraction form
    135,445.35/186,909.07 = 75,012.39/x
  3. Step 3: Cross multiply
    135,445.35x = 186,909.07 × 75,012.39
  4. Step 4: Simplify right side
    135,445.35x = 14,020,496,053.38
  5. Step 5: Solve for x
    x = 14,020,496,053.38/135,445.35
  6. Step 6: Final answer
    x = 103,514.04

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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.