Home / 108,348.99-149,209.74-89,311.17

Finding the Fourth Proportional to 108,348.99, 149,209.74 and 89,311.17

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Solution

The fourth proportional to 108,348.99, 149,209.74 and 89,311.17 is: 122,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,348.99 : 149,209.74 = 89,311.17 : x
  2. Step 2: Convert to fraction form
    108,348.99/149,209.74 = 89,311.17/x
  3. Step 3: Cross multiply
    108,348.99x = 149,209.74 × 89,311.17
  4. Step 4: Simplify right side
    108,348.99x = 13,326,096,454.80
  5. Step 5: Solve for x
    x = 13,326,096,454.80/108,348.99
  6. Step 6: Final answer
    x = 122,992.35

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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.