Home / 107,690.38-161,535.52-28,802.55

Finding the Fourth Proportional to 107,690.38, 161,535.52 and 28,802.55

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Solution

The fourth proportional to 107,690.38, 161,535.52 and 28,802.55 is: 43,203.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,690.38 : 161,535.52 = 28,802.55 : x
  2. Step 2: Convert to fraction form
    107,690.38/161,535.52 = 28,802.55/x
  3. Step 3: Cross multiply
    107,690.38x = 161,535.52 × 28,802.55
  4. Step 4: Simplify right side
    107,690.38x = 4,652,635,533.34
  5. Step 5: Solve for x
    x = 4,652,635,533.34/107,690.38
  6. Step 6: Final answer
    x = 43,203.82

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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.