Home / 107,723.91-148,653.30-61,781.18

Finding the Fourth Proportional to 107,723.91, 148,653.30 and 61,781.18

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Solution

The fourth proportional to 107,723.91, 148,653.30 and 61,781.18 is: 85,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,723.91 : 148,653.30 = 61,781.18 : x
  2. Step 2: Convert to fraction form
    107,723.91/148,653.30 = 61,781.18/x
  3. Step 3: Cross multiply
    107,723.91x = 148,653.30 × 61,781.18
  4. Step 4: Simplify right side
    107,723.91x = 9,183,977,101.55
  5. Step 5: Solve for x
    x = 9,183,977,101.55/107,723.91
  6. Step 6: Final answer
    x = 85,254.77

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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.