Home / 108,102.17-149,231.55-62,771.32

Finding the Fourth Proportional to 108,102.17, 149,231.55 and 62,771.32

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Solution

The fourth proportional to 108,102.17, 149,231.55 and 62,771.32 is: 86,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,102.17 : 149,231.55 = 62,771.32 : x
  2. Step 2: Convert to fraction form
    108,102.17/149,231.55 = 62,771.32/x
  3. Step 3: Cross multiply
    108,102.17x = 149,231.55 × 62,771.32
  4. Step 4: Simplify right side
    108,102.17x = 9,367,461,379.15
  5. Step 5: Solve for x
    x = 9,367,461,379.15/108,102.17
  6. Step 6: Final answer
    x = 86,653.78

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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.