Home / 134,827.46-186,073.26-78,235.19

Finding the Fourth Proportional to 134,827.46, 186,073.26 and 78,235.19

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Solution

The fourth proportional to 134,827.46, 186,073.26 and 78,235.19 is: 107,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,827.46 : 186,073.26 = 78,235.19 : x
  2. Step 2: Convert to fraction form
    134,827.46/186,073.26 = 78,235.19/x
  3. Step 3: Cross multiply
    134,827.46x = 186,073.26 × 78,235.19
  4. Step 4: Simplify right side
    134,827.46x = 14,557,476,850.02
  5. Step 5: Solve for x
    x = 14,557,476,850.02/134,827.46
  6. Step 6: Final answer
    x = 107,971.16

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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.