Home / 112,137.20-168,439.80-94,641.20

Finding the Fourth Proportional to 112,137.20, 168,439.80 and 94,641.20

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Solution

The fourth proportional to 112,137.20, 168,439.80 and 94,641.20 is: 142,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,137.20 : 168,439.80 = 94,641.20 : x
  2. Step 2: Convert to fraction form
    112,137.20/168,439.80 = 94,641.20/x
  3. Step 3: Cross multiply
    112,137.20x = 168,439.80 × 94,641.20
  4. Step 4: Simplify right side
    112,137.20x = 15,941,344,799.76
  5. Step 5: Solve for x
    x = 15,941,344,799.76/112,137.20
  6. Step 6: Final answer
    x = 142,159.29

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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.