Home / 134,911.14-186,240.37-78,311.62

Finding the Fourth Proportional to 134,911.14, 186,240.37 and 78,311.62

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Solution

The fourth proportional to 134,911.14, 186,240.37 and 78,311.62 is: 108,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,911.14 : 186,240.37 = 78,311.62 : x
  2. Step 2: Convert to fraction form
    134,911.14/186,240.37 = 78,311.62/x
  3. Step 3: Cross multiply
    134,911.14x = 186,240.37 × 78,311.62
  4. Step 4: Simplify right side
    134,911.14x = 14,584,785,084.10
  5. Step 5: Solve for x
    x = 14,584,785,084.10/134,911.14
  6. Step 6: Final answer
    x = 108,106.60

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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.