Home / 121,422.96-167,555.52-76,099.32

Finding the Fourth Proportional to 121,422.96, 167,555.52 and 76,099.32

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Solution

The fourth proportional to 121,422.96, 167,555.52 and 76,099.32 is: 105,011.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,422.96 : 167,555.52 = 76,099.32 : x
  2. Step 2: Convert to fraction form
    121,422.96/167,555.52 = 76,099.32/x
  3. Step 3: Cross multiply
    121,422.96x = 167,555.52 × 76,099.32
  4. Step 4: Simplify right side
    121,422.96x = 12,750,861,134.25
  5. Step 5: Solve for x
    x = 12,750,861,134.25/121,422.96
  6. Step 6: Final answer
    x = 105,011.94

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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.