Home / 121,352.85-167,467.72-67,641.28

Finding the Fourth Proportional to 121,352.85, 167,467.72 and 67,641.28

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Solution

The fourth proportional to 121,352.85, 167,467.72 and 67,641.28 is: 93,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,352.85 : 167,467.72 = 67,641.28 : x
  2. Step 2: Convert to fraction form
    121,352.85/167,467.72 = 67,641.28/x
  3. Step 3: Cross multiply
    121,352.85x = 167,467.72 × 67,641.28
  4. Step 4: Simplify right side
    121,352.85x = 11,327,729,763.94
  5. Step 5: Solve for x
    x = 11,327,729,763.94/121,352.85
  6. Step 6: Final answer
    x = 93,345.39

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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.