Home / 121,305.72-167,402.56-70,348.66

Finding the Fourth Proportional to 121,305.72, 167,402.56 and 70,348.66

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Solution

The fourth proportional to 121,305.72, 167,402.56 and 70,348.66 is: 97,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,305.72 : 167,402.56 = 70,348.66 : x
  2. Step 2: Convert to fraction form
    121,305.72/167,402.56 = 70,348.66/x
  3. Step 3: Cross multiply
    121,305.72x = 167,402.56 × 70,348.66
  4. Step 4: Simplify right side
    121,305.72x = 11,776,545,424.83
  5. Step 5: Solve for x
    x = 11,776,545,424.83/121,305.72
  6. Step 6: Final answer
    x = 97,081.54

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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.