Home / 108,677.43-149,919.26-72,441.27

Finding the Fourth Proportional to 108,677.43, 149,919.26 and 72,441.27

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Solution

The fourth proportional to 108,677.43, 149,919.26 and 72,441.27 is: 99,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,677.43 : 149,919.26 = 72,441.27 : x
  2. Step 2: Convert to fraction form
    108,677.43/149,919.26 = 72,441.27/x
  3. Step 3: Cross multiply
    108,677.43x = 149,919.26 × 72,441.27
  4. Step 4: Simplify right side
    108,677.43x = 10,860,341,229.65
  5. Step 5: Solve for x
    x = 10,860,341,229.65/108,677.43
  6. Step 6: Final answer
    x = 99,931.89

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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.