Home / 136,818.42-205,088.11-77,528.85

Finding the Fourth Proportional to 136,818.42, 205,088.11 and 77,528.85

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Solution

The fourth proportional to 136,818.42, 205,088.11 and 77,528.85 is: 116,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,818.42 : 205,088.11 = 77,528.85 : x
  2. Step 2: Convert to fraction form
    136,818.42/205,088.11 = 77,528.85/x
  3. Step 3: Cross multiply
    136,818.42x = 205,088.11 × 77,528.85
  4. Step 4: Simplify right side
    136,818.42x = 15,900,245,123.15
  5. Step 5: Solve for x
    x = 15,900,245,123.15/136,818.42
  6. Step 6: Final answer
    x = 116,214.21

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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.