Home / 86,277.23-129,437.33-68,574.68

Finding the Fourth Proportional to 86,277.23, 129,437.33 and 68,574.68

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Solution

The fourth proportional to 86,277.23, 129,437.33 and 68,574.68 is: 102,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,277.23 : 129,437.33 = 68,574.68 : x
  2. Step 2: Convert to fraction form
    86,277.23/129,437.33 = 68,574.68/x
  3. Step 3: Cross multiply
    86,277.23x = 129,437.33 × 68,574.68
  4. Step 4: Simplify right side
    86,277.23x = 8,876,123,484.80
  5. Step 5: Solve for x
    x = 8,876,123,484.80/86,277.23
  6. Step 6: Final answer
    x = 102,879.10

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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.