Home / 134,927.25-186,216.02-78,338.63

Finding the Fourth Proportional to 134,927.25, 186,216.02 and 78,338.63

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Solution

The fourth proportional to 134,927.25, 186,216.02 and 78,338.63 is: 108,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,927.25 : 186,216.02 = 78,338.63 : x
  2. Step 2: Convert to fraction form
    134,927.25/186,216.02 = 78,338.63/x
  3. Step 3: Cross multiply
    134,927.25x = 186,216.02 × 78,338.63
  4. Step 4: Simplify right side
    134,927.25x = 14,587,906,568.08
  5. Step 5: Solve for x
    x = 14,587,906,568.08/134,927.25
  6. Step 6: Final answer
    x = 108,116.83

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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.