Home / 117,932.70-176,607.45-78,275.10

Finding the Fourth Proportional to 117,932.70, 176,607.45 and 78,275.10

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Solution

The fourth proportional to 117,932.70, 176,607.45 and 78,275.10 is: 117,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,932.70 : 176,607.45 = 78,275.10 : x
  2. Step 2: Convert to fraction form
    117,932.70/176,607.45 = 78,275.10/x
  3. Step 3: Cross multiply
    117,932.70x = 176,607.45 × 78,275.10
  4. Step 4: Simplify right side
    117,932.70x = 13,823,965,809.50
  5. Step 5: Solve for x
    x = 13,823,965,809.50/117,932.70
  6. Step 6: Final answer
    x = 117,219.11

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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.