Home / 345,083.15-517,707.65-108,425.66

Finding the Fourth Proportional to 345,083.15, 517,707.65 and 108,425.66

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Solution

The fourth proportional to 345,083.15, 517,707.65 and 108,425.66 is: 162,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,083.15 : 517,707.65 = 108,425.66 : x
  2. Step 2: Convert to fraction form
    345,083.15/517,707.65 = 108,425.66/x
  3. Step 3: Cross multiply
    345,083.15x = 517,707.65 × 108,425.66
  4. Step 4: Simplify right side
    345,083.15x = 56,132,791,320.82
  5. Step 5: Solve for x
    x = 56,132,791,320.82/345,083.15
  6. Step 6: Final answer
    x = 162,664.54

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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.