Home / 121,074.07-167,164.50-75,770.35

Finding the Fourth Proportional to 121,074.07, 167,164.50 and 75,770.35

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Solution

The fourth proportional to 121,074.07, 167,164.50 and 75,770.35 is: 104,614.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,074.07 : 167,164.50 = 75,770.35 : x
  2. Step 2: Convert to fraction form
    121,074.07/167,164.50 = 75,770.35/x
  3. Step 3: Cross multiply
    121,074.07x = 167,164.50 × 75,770.35
  4. Step 4: Simplify right side
    121,074.07x = 12,666,112,672.58
  5. Step 5: Solve for x
    x = 12,666,112,672.58/121,074.07
  6. Step 6: Final answer
    x = 104,614.58

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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.