Home / 121,218.14-167,270.31-70,214.56

Finding the Fourth Proportional to 121,218.14, 167,270.31 and 70,214.56

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Solution

The fourth proportional to 121,218.14, 167,270.31 and 70,214.56 is: 96,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,218.14 : 167,270.31 = 70,214.56 : x
  2. Step 2: Convert to fraction form
    121,218.14/167,270.31 = 70,214.56/x
  3. Step 3: Cross multiply
    121,218.14x = 167,270.31 × 70,214.56
  4. Step 4: Simplify right side
    121,218.14x = 11,744,811,217.71
  5. Step 5: Solve for x
    x = 11,744,811,217.71/121,218.14
  6. Step 6: Final answer
    x = 96,889.88

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1.5x scale

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.