Home / 99,228.85-136,935.27-53,906.47

Finding the Fourth Proportional to 99,228.85, 136,935.27 and 53,906.47

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Solution

The fourth proportional to 99,228.85, 136,935.27 and 53,906.47 is: 74,390.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,228.85 : 136,935.27 = 53,906.47 : x
  2. Step 2: Convert to fraction form
    99,228.85/136,935.27 = 53,906.47/x
  3. Step 3: Cross multiply
    99,228.85x = 136,935.27 × 53,906.47
  4. Step 4: Simplify right side
    99,228.85x = 7,381,697,024.20
  5. Step 5: Solve for x
    x = 7,381,697,024.20/99,228.85
  6. Step 6: Final answer
    x = 74,390.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.