Home / 259,020.03-387,812.63-132,387.57

Finding the Fourth Proportional to 259,020.03, 387,812.63 and 132,387.57

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Solution

The fourth proportional to 259,020.03, 387,812.63 and 132,387.57 is: 198,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,020.03 : 387,812.63 = 132,387.57 : x
  2. Step 2: Convert to fraction form
    259,020.03/387,812.63 = 132,387.57/x
  3. Step 3: Cross multiply
    259,020.03x = 387,812.63 × 132,387.57
  4. Step 4: Simplify right side
    259,020.03x = 51,341,572,031.98
  5. Step 5: Solve for x
    x = 51,341,572,031.98/259,020.03
  6. Step 6: Final answer
    x = 198,214.68

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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.