Home / 196,480.08-294,723.36-71,820

Finding the Fourth Proportional to 196,480.08, 294,723.36 and 71,820

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Solution

The fourth proportional to 196,480.08, 294,723.36 and 71,820 is: 107,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,480.08 : 294,723.36 = 71,820 : x
  2. Step 2: Convert to fraction form
    196,480.08/294,723.36 = 71,820/x
  3. Step 3: Cross multiply
    196,480.08x = 294,723.36 × 71,820
  4. Step 4: Simplify right side
    196,480.08x = 21,167,031,715.20
  5. Step 5: Solve for x
    x = 21,167,031,715.20/196,480.08
  6. Step 6: Final answer
    x = 107,731.18

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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.