Home / 137,177.03-189,311.66-76,744.07

Finding the Fourth Proportional to 137,177.03, 189,311.66 and 76,744.07

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Solution

The fourth proportional to 137,177.03, 189,311.66 and 76,744.07 is: 105,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,177.03 : 189,311.66 = 76,744.07 : x
  2. Step 2: Convert to fraction form
    137,177.03/189,311.66 = 76,744.07/x
  3. Step 3: Cross multiply
    137,177.03x = 189,311.66 × 76,744.07
  4. Step 4: Simplify right side
    137,177.03x = 14,528,547,286.86
  5. Step 5: Solve for x
    x = 14,528,547,286.86/137,177.03
  6. Step 6: Final answer
    x = 105,910.93

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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.