Home / 199,395.03-299,149.04-81,151.23

Finding the Fourth Proportional to 199,395.03, 299,149.04 and 81,151.23

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Solution

The fourth proportional to 199,395.03, 299,149.04 and 81,151.23 is: 121,749.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,395.03 : 299,149.04 = 81,151.23 : x
  2. Step 2: Convert to fraction form
    199,395.03/299,149.04 = 81,151.23/x
  3. Step 3: Cross multiply
    199,395.03x = 299,149.04 × 81,151.23
  4. Step 4: Simplify right side
    199,395.03x = 24,276,312,549.32
  5. Step 5: Solve for x
    x = 24,276,312,549.32/199,395.03
  6. Step 6: Final answer
    x = 121,749.84

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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.