Home / 130,932.45-196,484.67-71,809.61

Finding the Fourth Proportional to 130,932.45, 196,484.67 and 71,809.61

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Solution

The fourth proportional to 130,932.45, 196,484.67 and 71,809.61 is: 107,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,932.45 : 196,484.67 = 71,809.61 : x
  2. Step 2: Convert to fraction form
    130,932.45/196,484.67 = 71,809.61/x
  3. Step 3: Cross multiply
    130,932.45x = 196,484.67 × 71,809.61
  4. Step 4: Simplify right side
    130,932.45x = 14,109,486,541.26
  5. Step 5: Solve for x
    x = 14,109,486,541.26/130,932.45
  6. Step 6: Final answer
    x = 107,761.57

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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.