Home / 137,154.88-189,277.32-80,554.96

Finding the Fourth Proportional to 137,154.88, 189,277.32 and 80,554.96

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Solution

The fourth proportional to 137,154.88, 189,277.32 and 80,554.96 is: 111,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,154.88 : 189,277.32 = 80,554.96 : x
  2. Step 2: Convert to fraction form
    137,154.88/189,277.32 = 80,554.96/x
  3. Step 3: Cross multiply
    137,154.88x = 189,277.32 × 80,554.96
  4. Step 4: Simplify right side
    137,154.88x = 15,247,226,941.51
  5. Step 5: Solve for x
    x = 15,247,226,941.51/137,154.88
  6. Step 6: Final answer
    x = 111,167.95

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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.