Home / 135,589.48-187,101.73-77,445.94

Finding the Fourth Proportional to 135,589.48, 187,101.73 and 77,445.94

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Solution

The fourth proportional to 135,589.48, 187,101.73 and 77,445.94 is: 106,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,589.48 : 187,101.73 = 77,445.94 : x
  2. Step 2: Convert to fraction form
    135,589.48/187,101.73 = 77,445.94/x
  3. Step 3: Cross multiply
    135,589.48x = 187,101.73 × 77,445.94
  4. Step 4: Simplify right side
    135,589.48x = 14,490,268,382.65
  5. Step 5: Solve for x
    x = 14,490,268,382.65/135,589.48
  6. Step 6: Final answer
    x = 106,868.68

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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.