Home / 117,908.20-176,603.10-71,079.40

Finding the Fourth Proportional to 117,908.20, 176,603.10 and 71,079.40

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Solution

The fourth proportional to 117,908.20, 176,603.10 and 71,079.40 is: 106,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,908.20 : 176,603.10 = 71,079.40 : x
  2. Step 2: Convert to fraction form
    117,908.20/176,603.10 = 71,079.40/x
  3. Step 3: Cross multiply
    117,908.20x = 176,603.10 × 71,079.40
  4. Step 4: Simplify right side
    117,908.20x = 12,552,842,386.14
  5. Step 5: Solve for x
    x = 12,552,842,386.14/117,908.20
  6. Step 6: Final answer
    x = 106,462.84

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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.