Home / 108,854.20-150,225.51-72,493.30

Finding the Fourth Proportional to 108,854.20, 150,225.51 and 72,493.30

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Solution

The fourth proportional to 108,854.20, 150,225.51 and 72,493.30 is: 100,045.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,854.20 : 150,225.51 = 72,493.30 : x
  2. Step 2: Convert to fraction form
    108,854.20/150,225.51 = 72,493.30/x
  3. Step 3: Cross multiply
    108,854.20x = 150,225.51 × 72,493.30
  4. Step 4: Simplify right side
    108,854.20x = 10,890,342,964.08
  5. Step 5: Solve for x
    x = 10,890,342,964.08/108,854.20
  6. Step 6: Final answer
    x = 100,045.23

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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.