Home / 199,477.20-299,005.76-66,321.68

Finding the Fourth Proportional to 199,477.20, 299,005.76 and 66,321.68

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Solution

The fourth proportional to 199,477.20, 299,005.76 and 66,321.68 is: 99,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,477.20 : 299,005.76 = 66,321.68 : x
  2. Step 2: Convert to fraction form
    199,477.20/299,005.76 = 66,321.68/x
  3. Step 3: Cross multiply
    199,477.20x = 299,005.76 × 66,321.68
  4. Step 4: Simplify right side
    199,477.20x = 19,830,564,332.88
  5. Step 5: Solve for x
    x = 19,830,564,332.88/199,477.20
  6. Step 6: Final answer
    x = 99,412.69

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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.