Home / 134,922.52-186,178.94-78,322.84

Finding the Fourth Proportional to 134,922.52, 186,178.94 and 78,322.84

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Solution

The fourth proportional to 134,922.52, 186,178.94 and 78,322.84 is: 108,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,922.52 : 186,178.94 = 78,322.84 : x
  2. Step 2: Convert to fraction form
    134,922.52/186,178.94 = 78,322.84/x
  3. Step 3: Cross multiply
    134,922.52x = 186,178.94 × 78,322.84
  4. Step 4: Simplify right side
    134,922.52x = 14,582,063,328.99
  5. Step 5: Solve for x
    x = 14,582,063,328.99/134,922.52
  6. Step 6: Final answer
    x = 108,077.31

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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.