Home / 235,454.10-353,338.20-85,694.35

Finding the Fourth Proportional to 235,454.10, 353,338.20 and 85,694.35

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Solution

The fourth proportional to 235,454.10, 353,338.20 and 85,694.35 is: 128,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,454.10 : 353,338.20 = 85,694.35 : x
  2. Step 2: Convert to fraction form
    235,454.10/353,338.20 = 85,694.35/x
  3. Step 3: Cross multiply
    235,454.10x = 353,338.20 × 85,694.35
  4. Step 4: Simplify right side
    235,454.10x = 30,279,087,379.17
  5. Step 5: Solve for x
    x = 30,279,087,379.17/235,454.10
  6. Step 6: Final answer
    x = 128,598.68

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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.