Home / 412,203.10-618,341.55-112,685.24

Finding the Fourth Proportional to 412,203.10, 618,341.55 and 112,685.24

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Solution

The fourth proportional to 412,203.10, 618,341.55 and 112,685.24 is: 169,037.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,203.10 : 618,341.55 = 112,685.24 : x
  2. Step 2: Convert to fraction form
    412,203.10/618,341.55 = 112,685.24/x
  3. Step 3: Cross multiply
    412,203.10x = 618,341.55 × 112,685.24
  4. Step 4: Simplify right side
    412,203.10x = 69,677,965,963.72
  5. Step 5: Solve for x
    x = 69,677,965,963.72/412,203.10
  6. Step 6: Final answer
    x = 169,037.95

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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.