Home / 121,090.56-167,102.55-70,105.92

Finding the Fourth Proportional to 121,090.56, 167,102.55 and 70,105.92

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Solution

The fourth proportional to 121,090.56, 167,102.55 and 70,105.92 is: 96,744.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,090.56 : 167,102.55 = 70,105.92 : x
  2. Step 2: Convert to fraction form
    121,090.56/167,102.55 = 70,105.92/x
  3. Step 3: Cross multiply
    121,090.56x = 167,102.55 × 70,105.92
  4. Step 4: Simplify right side
    121,090.56x = 11,714,878,002.10
  5. Step 5: Solve for x
    x = 11,714,878,002.10/121,090.56
  6. Step 6: Final answer
    x = 96,744.77

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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.