Home / 199,420.57-299,066.13-66,265.09

Finding the Fourth Proportional to 199,420.57, 299,066.13 and 66,265.09

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Solution

The fourth proportional to 199,420.57, 299,066.13 and 66,265.09 is: 99,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,420.57 : 299,066.13 = 66,265.09 : x
  2. Step 2: Convert to fraction form
    199,420.57/299,066.13 = 66,265.09/x
  3. Step 3: Cross multiply
    199,420.57x = 299,066.13 × 66,265.09
  4. Step 4: Simplify right side
    199,420.57x = 19,817,644,020.40
  5. Step 5: Solve for x
    x = 19,817,644,020.40/199,420.57
  6. Step 6: Final answer
    x = 99,376.13

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1.5x scale

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.