Home / 107,698.79-161,565.71-31,805.00

Finding the Fourth Proportional to 107,698.79, 161,565.71 and 31,805.00

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Solution

The fourth proportional to 107,698.79, 161,565.71 and 31,805.00 is: 47,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,698.79 : 161,565.71 = 31,805.00 : x
  2. Step 2: Convert to fraction form
    107,698.79/161,565.71 = 31,805.00/x
  3. Step 3: Cross multiply
    107,698.79x = 161,565.71 × 31,805.00
  4. Step 4: Simplify right side
    107,698.79x = 5,138,597,949.61
  5. Step 5: Solve for x
    x = 5,138,597,949.61/107,698.79
  6. Step 6: Final answer
    x = 47,712.68

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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.