Home / 121,494.28-167,662.18-67,779.30

Finding the Fourth Proportional to 121,494.28, 167,662.18 and 67,779.30

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Solution

The fourth proportional to 121,494.28, 167,662.18 and 67,779.30 is: 93,535.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,494.28 : 167,662.18 = 67,779.30 : x
  2. Step 2: Convert to fraction form
    121,494.28/167,662.18 = 67,779.30/x
  3. Step 3: Cross multiply
    121,494.28x = 167,662.18 × 67,779.30
  4. Step 4: Simplify right side
    121,494.28x = 11,364,025,366.32
  5. Step 5: Solve for x
    x = 11,364,025,366.32/121,494.28
  6. Step 6: Final answer
    x = 93,535.47

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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.