Home / 196,721.16-295,063.92-78,360.72

Finding the Fourth Proportional to 196,721.16, 295,063.92 and 78,360.72

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Solution

The fourth proportional to 196,721.16, 295,063.92 and 78,360.72 is: 117,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,721.16 : 295,063.92 = 78,360.72 : x
  2. Step 2: Convert to fraction form
    196,721.16/295,063.92 = 78,360.72/x
  3. Step 3: Cross multiply
    196,721.16x = 295,063.92 × 78,360.72
  4. Step 4: Simplify right side
    196,721.16x = 23,121,421,217.22
  5. Step 5: Solve for x
    x = 23,121,421,217.22/196,721.16
  6. Step 6: Final answer
    x = 117,533.98

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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.