Home / 126,653.12-189,863.04-56,494.16

Finding the Fourth Proportional to 126,653.12, 189,863.04 and 56,494.16

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Solution

The fourth proportional to 126,653.12, 189,863.04 and 56,494.16 is: 84,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,653.12 : 189,863.04 = 56,494.16 : x
  2. Step 2: Convert to fraction form
    126,653.12/189,863.04 = 56,494.16/x
  3. Step 3: Cross multiply
    126,653.12x = 189,863.04 × 56,494.16
  4. Step 4: Simplify right side
    126,653.12x = 10,726,152,959.85
  5. Step 5: Solve for x
    x = 10,726,152,959.85/126,653.12
  6. Step 6: Final answer
    x = 84,689.21

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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.