Home / 108,522.11-149,762.49-65,501.66

Finding the Fourth Proportional to 108,522.11, 149,762.49 and 65,501.66

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Solution

The fourth proportional to 108,522.11, 149,762.49 and 65,501.66 is: 90,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,522.11 : 149,762.49 = 65,501.66 : x
  2. Step 2: Convert to fraction form
    108,522.11/149,762.49 = 65,501.66/x
  3. Step 3: Cross multiply
    108,522.11x = 149,762.49 × 65,501.66
  4. Step 4: Simplify right side
    108,522.11x = 9,809,691,700.73
  5. Step 5: Solve for x
    x = 9,809,691,700.73/108,522.11
  6. Step 6: Final answer
    x = 90,393.48

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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.