Home / 130,722.85-180,561.96-107,835.61

Finding the Fourth Proportional to 130,722.85, 180,561.96 and 107,835.61

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Solution

The fourth proportional to 130,722.85, 180,561.96 and 107,835.61 is: 148,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,722.85 : 180,561.96 = 107,835.61 : x
  2. Step 2: Convert to fraction form
    130,722.85/180,561.96 = 107,835.61/x
  3. Step 3: Cross multiply
    130,722.85x = 180,561.96 × 107,835.61
  4. Step 4: Simplify right side
    130,722.85x = 19,471,009,099.40
  5. Step 5: Solve for x
    x = 19,471,009,099.40/130,722.85
  6. Step 6: Final answer
    x = 148,948.78

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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.