Home / 161,617.31-223,031.86-93,673.70

Finding the Fourth Proportional to 161,617.31, 223,031.86 and 93,673.70

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Solution

The fourth proportional to 161,617.31, 223,031.86 and 93,673.70 is: 129,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,617.31 : 223,031.86 = 93,673.70 : x
  2. Step 2: Convert to fraction form
    161,617.31/223,031.86 = 93,673.70/x
  3. Step 3: Cross multiply
    161,617.31x = 223,031.86 × 93,673.70
  4. Step 4: Simplify right side
    161,617.31x = 20,892,218,428.92
  5. Step 5: Solve for x
    x = 20,892,218,428.92/161,617.31
  6. Step 6: Final answer
    x = 129,269.69

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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.