Home / 121,327.81-167,432.54-67,611.65

Finding the Fourth Proportional to 121,327.81, 167,432.54 and 67,611.65

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Solution

The fourth proportional to 121,327.81, 167,432.54 and 67,611.65 is: 93,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327.81 : 167,432.54 = 67,611.65 : x
  2. Step 2: Convert to fraction form
    121,327.81/167,432.54 = 67,611.65/x
  3. Step 3: Cross multiply
    121,327.81x = 167,432.54 × 67,611.65
  4. Step 4: Simplify right side
    121,327.81x = 11,320,389,117.87
  5. Step 5: Solve for x
    x = 11,320,389,117.87/121,327.81
  6. Step 6: Final answer
    x = 93,304.16

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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.