Home / 107,764.16-161,646.30-28,876.40

Finding the Fourth Proportional to 107,764.16, 161,646.30 and 28,876.40

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Solution

The fourth proportional to 107,764.16, 161,646.30 and 28,876.40 is: 43,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,764.16 : 161,646.30 = 28,876.40 : x
  2. Step 2: Convert to fraction form
    107,764.16/161,646.30 = 28,876.40/x
  3. Step 3: Cross multiply
    107,764.16x = 161,646.30 × 28,876.40
  4. Step 4: Simplify right side
    107,764.16x = 4,667,763,217.32
  5. Step 5: Solve for x
    x = 4,667,763,217.32/107,764.16
  6. Step 6: Final answer
    x = 43,314.62

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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.