Home / 101,918.27-140,624.56-61,631.18

Finding the Fourth Proportional to 101,918.27, 140,624.56 and 61,631.18

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Solution

The fourth proportional to 101,918.27, 140,624.56 and 61,631.18 is: 85,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,918.27 : 140,624.56 = 61,631.18 : x
  2. Step 2: Convert to fraction form
    101,918.27/140,624.56 = 61,631.18/x
  3. Step 3: Cross multiply
    101,918.27x = 140,624.56 × 61,631.18
  4. Step 4: Simplify right side
    101,918.27x = 8,666,857,767.26
  5. Step 5: Solve for x
    x = 8,666,857,767.26/101,918.27
  6. Step 6: Final answer
    x = 85,037.34

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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.