Home / 121,642.52-167,867.50-67,928.18

Finding the Fourth Proportional to 121,642.52, 167,867.50 and 67,928.18

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Solution

The fourth proportional to 121,642.52, 167,867.50 and 67,928.18 is: 93,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,642.52 : 167,867.50 = 67,928.18 : x
  2. Step 2: Convert to fraction form
    121,642.52/167,867.50 = 67,928.18/x
  3. Step 3: Cross multiply
    121,642.52x = 167,867.50 × 67,928.18
  4. Step 4: Simplify right side
    121,642.52x = 11,402,933,756.15
  5. Step 5: Solve for x
    x = 11,402,933,756.15/121,642.52
  6. Step 6: Final answer
    x = 93,741.35

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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.