Home / 261,250.85-391,931.69-83,882.45

Finding the Fourth Proportional to 261,250.85, 391,931.69 and 83,882.45

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Solution

The fourth proportional to 261,250.85, 391,931.69 and 83,882.45 is: 125,841.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,250.85 : 391,931.69 = 83,882.45 : x
  2. Step 2: Convert to fraction form
    261,250.85/391,931.69 = 83,882.45/x
  3. Step 3: Cross multiply
    261,250.85x = 391,931.69 × 83,882.45
  4. Step 4: Simplify right side
    261,250.85x = 32,876,190,389.84
  5. Step 5: Solve for x
    x = 32,876,190,389.84/261,250.85
  6. Step 6: Final answer
    x = 125,841.47

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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.