Home / 121,441.93-167,532.67-78,984.97

Finding the Fourth Proportional to 121,441.93, 167,532.67 and 78,984.97

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Solution

The fourth proportional to 121,441.93, 167,532.67 and 78,984.97 is: 108,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,441.93 : 167,532.67 = 78,984.97 : x
  2. Step 2: Convert to fraction form
    121,441.93/167,532.67 = 78,984.97/x
  3. Step 3: Cross multiply
    121,441.93x = 167,532.67 × 78,984.97
  4. Step 4: Simplify right side
    121,441.93x = 13,232,562,913.97
  5. Step 5: Solve for x
    x = 13,232,562,913.97/121,441.93
  6. Step 6: Final answer
    x = 108,962.06

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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.