Home / 121,441.32-167,572.26-67,720.04

Finding the Fourth Proportional to 121,441.32, 167,572.26 and 67,720.04

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Solution

The fourth proportional to 121,441.32, 167,572.26 and 67,720.04 is: 93,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,441.32 : 167,572.26 = 67,720.04 : x
  2. Step 2: Convert to fraction form
    121,441.32/167,572.26 = 67,720.04/x
  3. Step 3: Cross multiply
    121,441.32x = 167,572.26 × 67,720.04
  4. Step 4: Simplify right side
    121,441.32x = 11,348,000,150.09
  5. Step 5: Solve for x
    x = 11,348,000,150.09/121,441.32
  6. Step 6: Final answer
    x = 93,444.31

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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.