Home / 134,822.40-186,091.92-78,252

Finding the Fourth Proportional to 134,822.40, 186,091.92 and 78,252

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Solution

The fourth proportional to 134,822.40, 186,091.92 and 78,252 is: 108,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,822.40 : 186,091.92 = 78,252 : x
  2. Step 2: Convert to fraction form
    134,822.40/186,091.92 = 78,252/x
  3. Step 3: Cross multiply
    134,822.40x = 186,091.92 × 78,252
  4. Step 4: Simplify right side
    134,822.40x = 14,562,064,923.84
  5. Step 5: Solve for x
    x = 14,562,064,923.84/134,822.40
  6. Step 6: Final answer
    x = 108,009.24

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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.