Home / 199,613.40-299,355.24-66,457.80

Finding the Fourth Proportional to 199,613.40, 299,355.24 and 66,457.80

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Solution

The fourth proportional to 199,613.40, 299,355.24 and 66,457.80 is: 99,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,613.40 : 299,355.24 = 66,457.80 : x
  2. Step 2: Convert to fraction form
    199,613.40/299,355.24 = 66,457.80/x
  3. Step 3: Cross multiply
    199,613.40x = 299,355.24 × 66,457.80
  4. Step 4: Simplify right side
    199,613.40x = 19,894,490,668.87
  5. Step 5: Solve for x
    x = 19,894,490,668.87/199,613.40
  6. Step 6: Final answer
    x = 99,665.11

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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.