Home / 117,638.12-176,379.17-42,749.37

Finding the Fourth Proportional to 117,638.12, 176,379.17 and 42,749.37

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Solution

The fourth proportional to 117,638.12, 176,379.17 and 42,749.37 is: 64,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,638.12 : 176,379.17 = 42,749.37 : x
  2. Step 2: Convert to fraction form
    117,638.12/176,379.17 = 42,749.37/x
  3. Step 3: Cross multiply
    117,638.12x = 176,379.17 × 42,749.37
  4. Step 4: Simplify right side
    117,638.12x = 7,540,097,797.36
  5. Step 5: Solve for x
    x = 7,540,097,797.36/117,638.12
  6. Step 6: Final answer
    x = 64,095.70

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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.