Home / 261,176.40-391,764.60-83,701.35

Finding the Fourth Proportional to 261,176.40, 391,764.60 and 83,701.35

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Solution

The fourth proportional to 261,176.40, 391,764.60 and 83,701.35 is: 125,552.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,176.40 : 391,764.60 = 83,701.35 : x
  2. Step 2: Convert to fraction form
    261,176.40/391,764.60 = 83,701.35/x
  3. Step 3: Cross multiply
    261,176.40x = 391,764.60 × 83,701.35
  4. Step 4: Simplify right side
    261,176.40x = 32,791,225,902.21
  5. Step 5: Solve for x
    x = 32,791,225,902.21/261,176.40
  6. Step 6: Final answer
    x = 125,552.03

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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.