Home / 261,014.14-391,515.72-83,521.18

Finding the Fourth Proportional to 261,014.14, 391,515.72 and 83,521.18

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Solution

The fourth proportional to 261,014.14, 391,515.72 and 83,521.18 is: 125,280.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,014.14 : 391,515.72 = 83,521.18 : x
  2. Step 2: Convert to fraction form
    261,014.14/391,515.72 = 83,521.18/x
  3. Step 3: Cross multiply
    261,014.14x = 391,515.72 × 83,521.18
  4. Step 4: Simplify right side
    261,014.14x = 32,699,854,922.95
  5. Step 5: Solve for x
    x = 32,699,854,922.95/261,014.14
  6. Step 6: Final answer
    x = 125,280.01

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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.