Home / 260,680.95-391,028.22-83,187.72

Finding the Fourth Proportional to 260,680.95, 391,028.22 and 83,187.72

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Solution

The fourth proportional to 260,680.95, 391,028.22 and 83,187.72 is: 124,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,680.95 : 391,028.22 = 83,187.72 : x
  2. Step 2: Convert to fraction form
    260,680.95/391,028.22 = 83,187.72/x
  3. Step 3: Cross multiply
    260,680.95x = 391,028.22 × 83,187.72
  4. Step 4: Simplify right side
    260,680.95x = 32,528,746,077.46
  5. Step 5: Solve for x
    x = 32,528,746,077.46/260,680.95
  6. Step 6: Final answer
    x = 124,783.75

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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.