Home / 121,127.50-167,118.33-68,730.88

Finding the Fourth Proportional to 121,127.50, 167,118.33 and 68,730.88

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Solution

The fourth proportional to 121,127.50, 167,118.33 and 68,730.88 is: 94,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127.50 : 167,118.33 = 68,730.88 : x
  2. Step 2: Convert to fraction form
    121,127.50/167,118.33 = 68,730.88/x
  3. Step 3: Cross multiply
    121,127.50x = 167,118.33 × 68,730.88
  4. Step 4: Simplify right side
    121,127.50x = 11,486,189,555.06
  5. Step 5: Solve for x
    x = 11,486,189,555.06/121,127.50
  6. Step 6: Final answer
    x = 94,827.26

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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.