Home / 130,564.46-180,162.83-79,558.61

Finding the Fourth Proportional to 130,564.46, 180,162.83 and 79,558.61

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Solution

The fourth proportional to 130,564.46, 180,162.83 and 79,558.61 is: 109,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,564.46 : 180,162.83 = 79,558.61 : x
  2. Step 2: Convert to fraction form
    130,564.46/180,162.83 = 79,558.61/x
  3. Step 3: Cross multiply
    130,564.46x = 180,162.83 × 79,558.61
  4. Step 4: Simplify right side
    130,564.46x = 14,333,503,626.55
  5. Step 5: Solve for x
    x = 14,333,503,626.55/130,564.46
  6. Step 6: Final answer
    x = 109,781.05

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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.