Home / 117,968.70-176,661.45-78,311.10

Finding the Fourth Proportional to 117,968.70, 176,661.45 and 78,311.10

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Solution

The fourth proportional to 117,968.70, 176,661.45 and 78,311.10 is: 117,273.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,968.70 : 176,661.45 = 78,311.10 : x
  2. Step 2: Convert to fraction form
    117,968.70/176,661.45 = 78,311.10/x
  3. Step 3: Cross multiply
    117,968.70x = 176,661.45 × 78,311.10
  4. Step 4: Simplify right side
    117,968.70x = 13,834,552,477.10
  5. Step 5: Solve for x
    x = 13,834,552,477.10/117,968.70
  6. Step 6: Final answer
    x = 117,273.08

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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.