Home / 86,123.72-129,177.23-26,152.72

Finding the Fourth Proportional to 86,123.72, 129,177.23 and 26,152.72

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Solution

The fourth proportional to 86,123.72, 129,177.23 and 26,152.72 is: 39,226.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.72 : 129,177.23 = 26,152.72 : x
  2. Step 2: Convert to fraction form
    86,123.72/129,177.23 = 26,152.72/x
  3. Step 3: Cross multiply
    86,123.72x = 129,177.23 × 26,152.72
  4. Step 4: Simplify right side
    86,123.72x = 3,378,335,149.92
  5. Step 5: Solve for x
    x = 3,378,335,149.92/86,123.72
  6. Step 6: Final answer
    x = 39,226.54

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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.