Home / 134,188.47-185,189.76-80,472.51

Finding the Fourth Proportional to 134,188.47, 185,189.76 and 80,472.51

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Solution

The fourth proportional to 134,188.47, 185,189.76 and 80,472.51 is: 111,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,188.47 : 185,189.76 = 80,472.51 : x
  2. Step 2: Convert to fraction form
    134,188.47/185,189.76 = 80,472.51/x
  3. Step 3: Cross multiply
    134,188.47x = 185,189.76 × 80,472.51
  4. Step 4: Simplify right side
    134,188.47x = 14,902,684,813.50
  5. Step 5: Solve for x
    x = 14,902,684,813.50/134,188.47
  6. Step 6: Final answer
    x = 111,057.86

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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.