Home / 109,663.83-151,338.60-61,917.18

Finding the Fourth Proportional to 109,663.83, 151,338.60 and 61,917.18

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Solution

The fourth proportional to 109,663.83, 151,338.60 and 61,917.18 is: 85,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,663.83 : 151,338.60 = 61,917.18 : x
  2. Step 2: Convert to fraction form
    109,663.83/151,338.60 = 61,917.18/x
  3. Step 3: Cross multiply
    109,663.83x = 151,338.60 × 61,917.18
  4. Step 4: Simplify right side
    109,663.83x = 9,370,459,337.15
  5. Step 5: Solve for x
    x = 9,370,459,337.15/109,663.83
  6. Step 6: Final answer
    x = 85,447.13

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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.