Home / 121,290.75-181,972.85-62,168.31

Finding the Fourth Proportional to 121,290.75, 181,972.85 and 62,168.31

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Solution

The fourth proportional to 121,290.75, 181,972.85 and 62,168.31 is: 93,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,290.75 : 181,972.85 = 62,168.31 : x
  2. Step 2: Convert to fraction form
    121,290.75/181,972.85 = 62,168.31/x
  3. Step 3: Cross multiply
    121,290.75x = 181,972.85 × 62,168.31
  4. Step 4: Simplify right side
    121,290.75x = 11,312,944,239.54
  5. Step 5: Solve for x
    x = 11,312,944,239.54/121,290.75
  6. Step 6: Final answer
    x = 93,271.29

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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.