Home / 121,365.14-167,480.56-76,068.21

Finding the Fourth Proportional to 121,365.14, 167,480.56 and 76,068.21

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Solution

The fourth proportional to 121,365.14, 167,480.56 and 76,068.21 is: 104,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,365.14 : 167,480.56 = 76,068.21 : x
  2. Step 2: Convert to fraction form
    121,365.14/167,480.56 = 76,068.21/x
  3. Step 3: Cross multiply
    121,365.14x = 167,480.56 × 76,068.21
  4. Step 4: Simplify right side
    121,365.14x = 12,739,947,132.14
  5. Step 5: Solve for x
    x = 12,739,947,132.14/121,365.14
  6. Step 6: Final answer
    x = 104,972.05

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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.