Home / 121,171.56-167,196.80-67,455.20

Finding the Fourth Proportional to 121,171.56, 167,196.80 and 67,455.20

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Solution

The fourth proportional to 121,171.56, 167,196.80 and 67,455.20 is: 93,077.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,171.56 : 167,196.80 = 67,455.20 : x
  2. Step 2: Convert to fraction form
    121,171.56/167,196.80 = 67,455.20/x
  3. Step 3: Cross multiply
    121,171.56x = 167,196.80 × 67,455.20
  4. Step 4: Simplify right side
    121,171.56x = 11,278,292,410.10
  5. Step 5: Solve for x
    x = 11,278,292,410.10/121,171.56
  6. Step 6: Final answer
    x = 93,077.06

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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.