Home / 261,170.05-391,744.12-83,673.13

Finding the Fourth Proportional to 261,170.05, 391,744.12 and 83,673.13

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Solution

The fourth proportional to 261,170.05, 391,744.12 and 83,673.13 is: 125,506.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,170.05 : 391,744.12 = 83,673.13 : x
  2. Step 2: Convert to fraction form
    261,170.05/391,744.12 = 83,673.13/x
  3. Step 3: Cross multiply
    261,170.05x = 391,744.12 × 83,673.13
  4. Step 4: Simplify right side
    261,170.05x = 32,778,454,302.41
  5. Step 5: Solve for x
    x = 32,778,454,302.41/261,170.05
  6. Step 6: Final answer
    x = 125,506.18

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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.