Home / 261,167.99-391,752.07-71,630.33

Finding the Fourth Proportional to 261,167.99, 391,752.07 and 71,630.33

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Solution

The fourth proportional to 261,167.99, 391,752.07 and 71,630.33 is: 107,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,167.99 : 391,752.07 = 71,630.33 : x
  2. Step 2: Convert to fraction form
    261,167.99/391,752.07 = 71,630.33/x
  3. Step 3: Cross multiply
    261,167.99x = 391,752.07 × 71,630.33
  4. Step 4: Simplify right side
    261,167.99x = 28,061,327,914.45
  5. Step 5: Solve for x
    x = 28,061,327,914.45/261,167.99
  6. Step 6: Final answer
    x = 107,445.51

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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.