Home / 103,872.78-143,310.06-58,545.18

Finding the Fourth Proportional to 103,872.78, 143,310.06 and 58,545.18

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Solution

The fourth proportional to 103,872.78, 143,310.06 and 58,545.18 is: 80,772.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.78 : 143,310.06 = 58,545.18 : x
  2. Step 2: Convert to fraction form
    103,872.78/143,310.06 = 58,545.18/x
  3. Step 3: Cross multiply
    103,872.78x = 143,310.06 × 58,545.18
  4. Step 4: Simplify right side
    103,872.78x = 8,390,113,258.51
  5. Step 5: Solve for x
    x = 8,390,113,258.51/103,872.78
  6. Step 6: Final answer
    x = 80,772.97

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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.