Home / 134,944.77-186,240.21-78,356.16

Finding the Fourth Proportional to 134,944.77, 186,240.21 and 78,356.16

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Solution

The fourth proportional to 134,944.77, 186,240.21 and 78,356.16 is: 108,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,944.77 : 186,240.21 = 78,356.16 : x
  2. Step 2: Convert to fraction form
    134,944.77/186,240.21 = 78,356.16/x
  3. Step 3: Cross multiply
    134,944.77x = 186,240.21 × 78,356.16
  4. Step 4: Simplify right side
    134,944.77x = 14,593,067,693.19
  5. Step 5: Solve for x
    x = 14,593,067,693.19/134,944.77
  6. Step 6: Final answer
    x = 108,141.04

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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.