Home / 126,550.74-189,878.51-55,436.64

Finding the Fourth Proportional to 126,550.74, 189,878.51 and 55,436.64

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Solution

The fourth proportional to 126,550.74, 189,878.51 and 55,436.64 is: 83,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,550.74 : 189,878.51 = 55,436.64 : x
  2. Step 2: Convert to fraction form
    126,550.74/189,878.51 = 55,436.64/x
  3. Step 3: Cross multiply
    126,550.74x = 189,878.51 × 55,436.64
  4. Step 4: Simplify right side
    126,550.74x = 10,526,226,325.42
  5. Step 5: Solve for x
    x = 10,526,226,325.42/126,550.74
  6. Step 6: Final answer
    x = 83,177.91

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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.