Home / 149,193.12-205,886.40-82,125.12

Finding the Fourth Proportional to 149,193.12, 205,886.40 and 82,125.12

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Solution

The fourth proportional to 149,193.12, 205,886.40 and 82,125.12 is: 113,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,193.12 : 205,886.40 = 82,125.12 : x
  2. Step 2: Convert to fraction form
    149,193.12/205,886.40 = 82,125.12/x
  3. Step 3: Cross multiply
    149,193.12x = 205,886.40 × 82,125.12
  4. Step 4: Simplify right side
    149,193.12x = 16,908,445,306.37
  5. Step 5: Solve for x
    x = 16,908,445,306.37/149,193.12
  6. Step 6: Final answer
    x = 113,332.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.