Home / 121,619.58-182,420.37-42,734.58

Finding the Fourth Proportional to 121,619.58, 182,420.37 and 42,734.58

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Solution

The fourth proportional to 121,619.58, 182,420.37 and 42,734.58 is: 64,098.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,619.58 : 182,420.37 = 42,734.58 : x
  2. Step 2: Convert to fraction form
    121,619.58/182,420.37 = 42,734.58/x
  3. Step 3: Cross multiply
    121,619.58x = 182,420.37 × 42,734.58
  4. Step 4: Simplify right side
    121,619.58x = 7,795,657,895.39
  5. Step 5: Solve for x
    x = 7,795,657,895.39/121,619.58
  6. Step 6: Final answer
    x = 64,098.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.