Home / 118,488.10-163,405.20-92,650

Finding the Fourth Proportional to 118,488.10, 163,405.20 and 92,650

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Solution

The fourth proportional to 118,488.10, 163,405.20 and 92,650 is: 127,772.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,488.10 : 163,405.20 = 92,650 : x
  2. Step 2: Convert to fraction form
    118,488.10/163,405.20 = 92,650/x
  3. Step 3: Cross multiply
    118,488.10x = 163,405.20 × 92,650
  4. Step 4: Simplify right side
    118,488.10x = 15,139,491,780.00
  5. Step 5: Solve for x
    x = 15,139,491,780.00/118,488.10
  6. Step 6: Final answer
    x = 127,772.26

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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.