Home / 121,178.31-167,206.12-67,461.96

Finding the Fourth Proportional to 121,178.31, 167,206.12 and 67,461.96

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Solution

The fourth proportional to 121,178.31, 167,206.12 and 67,461.96 is: 93,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,178.31 : 167,206.12 = 67,461.96 : x
  2. Step 2: Convert to fraction form
    121,178.31/167,206.12 = 67,461.96/x
  3. Step 3: Cross multiply
    121,178.31x = 167,206.12 × 67,461.96
  4. Step 4: Simplify right side
    121,178.31x = 11,280,052,579.20
  5. Step 5: Solve for x
    x = 11,280,052,579.20/121,178.31
  6. Step 6: Final answer
    x = 93,086.40

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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.