Home / 121,391.40-167,557.17-70,417.02

Finding the Fourth Proportional to 121,391.40, 167,557.17 and 70,417.02

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Solution

The fourth proportional to 121,391.40, 167,557.17 and 70,417.02 is: 97,196.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,391.40 : 167,557.17 = 70,417.02 : x
  2. Step 2: Convert to fraction form
    121,391.40/167,557.17 = 70,417.02/x
  3. Step 3: Cross multiply
    121,391.40x = 167,557.17 × 70,417.02
  4. Step 4: Simplify right side
    121,391.40x = 11,798,876,591.03
  5. Step 5: Solve for x
    x = 11,798,876,591.03/121,391.40
  6. Step 6: Final answer
    x = 97,196.97

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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.