Home / 99,913.08-149,943.43-47,322.56

Finding the Fourth Proportional to 99,913.08, 149,943.43 and 47,322.56

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Solution

The fourth proportional to 99,913.08, 149,943.43 and 47,322.56 is: 71,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,913.08 : 149,943.43 = 47,322.56 : x
  2. Step 2: Convert to fraction form
    99,913.08/149,943.43 = 47,322.56/x
  3. Step 3: Cross multiply
    99,913.08x = 149,943.43 × 47,322.56
  4. Step 4: Simplify right side
    99,913.08x = 7,095,707,396.79
  5. Step 5: Solve for x
    x = 7,095,707,396.79/99,913.08
  6. Step 6: Final answer
    x = 71,018.80

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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.