Home / 124,098.30-186,147.45-76,859.10

Finding the Fourth Proportional to 124,098.30, 186,147.45 and 76,859.10

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Solution

The fourth proportional to 124,098.30, 186,147.45 and 76,859.10 is: 115,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,098.30 : 186,147.45 = 76,859.10 : x
  2. Step 2: Convert to fraction form
    124,098.30/186,147.45 = 76,859.10/x
  3. Step 3: Cross multiply
    124,098.30x = 186,147.45 × 76,859.10
  4. Step 4: Simplify right side
    124,098.30x = 14,307,125,474.30
  5. Step 5: Solve for x
    x = 14,307,125,474.30/124,098.30
  6. Step 6: Final answer
    x = 115,288.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.