Home / 105,180.65-146,129.15-103,919.52

Finding the Fourth Proportional to 105,180.65, 146,129.15 and 103,919.52

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Solution

The fourth proportional to 105,180.65, 146,129.15 and 103,919.52 is: 144,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,180.65 : 146,129.15 = 103,919.52 : x
  2. Step 2: Convert to fraction form
    105,180.65/146,129.15 = 103,919.52/x
  3. Step 3: Cross multiply
    105,180.65x = 146,129.15 × 103,919.52
  4. Step 4: Simplify right side
    105,180.65x = 15,185,671,126.01
  5. Step 5: Solve for x
    x = 15,185,671,126.01/105,180.65
  6. Step 6: Final answer
    x = 144,377.04

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.