Home / 137,277.08-188,870.64-121,073.84

Finding the Fourth Proportional to 137,277.08, 188,870.64 and 121,073.84

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Solution

The fourth proportional to 137,277.08, 188,870.64 and 121,073.84 is: 166,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,277.08 : 188,870.64 = 121,073.84 : x
  2. Step 2: Convert to fraction form
    137,277.08/188,870.64 = 121,073.84/x
  3. Step 3: Cross multiply
    137,277.08x = 188,870.64 × 121,073.84
  4. Step 4: Simplify right side
    137,277.08x = 22,867,293,648.06
  5. Step 5: Solve for x
    x = 22,867,293,648.06/137,277.08
  6. Step 6: Final answer
    x = 166,577.65

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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.