Home / 163,962.20-226,276.28-100,280

Finding the Fourth Proportional to 163,962.20, 226,276.28 and 100,280

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Solution

The fourth proportional to 163,962.20, 226,276.28 and 100,280 is: 138,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,962.20 : 226,276.28 = 100,280 : x
  2. Step 2: Convert to fraction form
    163,962.20/226,276.28 = 100,280/x
  3. Step 3: Cross multiply
    163,962.20x = 226,276.28 × 100,280
  4. Step 4: Simplify right side
    163,962.20x = 22,690,985,358.40
  5. Step 5: Solve for x
    x = 22,690,985,358.40/163,962.20
  6. Step 6: Final answer
    x = 138,391.56

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1.5x scale

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.