Home / 117,837.18-176,667.48-71,079.12

Finding the Fourth Proportional to 117,837.18, 176,667.48 and 71,079.12

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Solution

The fourth proportional to 117,837.18, 176,667.48 and 71,079.12 is: 106,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,837.18 : 176,667.48 = 71,079.12 : x
  2. Step 2: Convert to fraction form
    117,837.18/176,667.48 = 71,079.12/x
  3. Step 3: Cross multiply
    117,837.18x = 176,667.48 × 71,079.12
  4. Step 4: Simplify right side
    117,837.18x = 12,557,369,011.02
  5. Step 5: Solve for x
    x = 12,557,369,011.02/117,837.18
  6. Step 6: Final answer
    x = 106,565.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.