Home / 121,707.54-167,961.06-70,719.66

Finding the Fourth Proportional to 121,707.54, 167,961.06 and 70,719.66

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Solution

The fourth proportional to 121,707.54, 167,961.06 and 70,719.66 is: 97,595.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,707.54 : 167,961.06 = 70,719.66 : x
  2. Step 2: Convert to fraction form
    121,707.54/167,961.06 = 70,719.66/x
  3. Step 3: Cross multiply
    121,707.54x = 167,961.06 × 70,719.66
  4. Step 4: Simplify right side
    121,707.54x = 11,878,149,056.44
  5. Step 5: Solve for x
    x = 11,878,149,056.44/121,707.54
  6. Step 6: Final answer
    x = 97,595.84

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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.