Home / 121,579.68-167,779.50-67,864.23

Finding the Fourth Proportional to 121,579.68, 167,779.50 and 67,864.23

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Solution

The fourth proportional to 121,579.68, 167,779.50 and 67,864.23 is: 93,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,579.68 : 167,779.50 = 67,864.23 : x
  2. Step 2: Convert to fraction form
    121,579.68/167,779.50 = 67,864.23/x
  3. Step 3: Cross multiply
    121,579.68x = 167,779.50 × 67,864.23
  4. Step 4: Simplify right side
    121,579.68x = 11,386,225,738.39
  5. Step 5: Solve for x
    x = 11,386,225,738.39/121,579.68
  6. Step 6: Final answer
    x = 93,652.37

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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.