Home / 199,622.07-299,320.11-81,154.10

Finding the Fourth Proportional to 199,622.07, 299,320.11 and 81,154.10

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Solution

The fourth proportional to 199,622.07, 299,320.11 and 81,154.10 is: 121,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,622.07 : 299,320.11 = 81,154.10 : x
  2. Step 2: Convert to fraction form
    199,622.07/299,320.11 = 81,154.10/x
  3. Step 3: Cross multiply
    199,622.07x = 299,320.11 × 81,154.10
  4. Step 4: Simplify right side
    199,622.07x = 24,291,054,887.25
  5. Step 5: Solve for x
    x = 24,291,054,887.25/199,622.07
  6. Step 6: Final answer
    x = 121,685.22

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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.