Home / 105,001.97-157,510.85-30,121.52

Finding the Fourth Proportional to 105,001.97, 157,510.85 and 30,121.52

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Solution

The fourth proportional to 105,001.97, 157,510.85 and 30,121.52 is: 45,184.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,001.97 : 157,510.85 = 30,121.52 : x
  2. Step 2: Convert to fraction form
    105,001.97/157,510.85 = 30,121.52/x
  3. Step 3: Cross multiply
    105,001.97x = 157,510.85 × 30,121.52
  4. Step 4: Simplify right side
    105,001.97x = 4,744,465,280.33
  5. Step 5: Solve for x
    x = 4,744,465,280.33/105,001.97
  6. Step 6: Final answer
    x = 45,184.54

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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.