Home / 121,256.65-167,338.34-70,269.47

Finding the Fourth Proportional to 121,256.65, 167,338.34 and 70,269.47

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Solution

The fourth proportional to 121,256.65, 167,338.34 and 70,269.47 is: 96,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,256.65 : 167,338.34 = 70,269.47 : x
  2. Step 2: Convert to fraction form
    121,256.65/167,338.34 = 70,269.47/x
  3. Step 3: Cross multiply
    121,256.65x = 167,338.34 × 70,269.47
  4. Step 4: Simplify right side
    121,256.65x = 11,758,776,462.48
  5. Step 5: Solve for x
    x = 11,758,776,462.48/121,256.65
  6. Step 6: Final answer
    x = 96,974.28

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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.