Home / 121,125.12-167,160.50-67,409.96

Finding the Fourth Proportional to 121,125.12, 167,160.50 and 67,409.96

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Solution

The fourth proportional to 121,125.12, 167,160.50 and 67,409.96 is: 93,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,125.12 : 167,160.50 = 67,409.96 : x
  2. Step 2: Convert to fraction form
    121,125.12/167,160.50 = 67,409.96/x
  3. Step 3: Cross multiply
    121,125.12x = 167,160.50 × 67,409.96
  4. Step 4: Simplify right side
    121,125.12x = 11,268,282,618.58
  5. Step 5: Solve for x
    x = 11,268,282,618.58/121,125.12
  6. Step 6: Final answer
    x = 93,030.10

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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.