Home / 99,856.05-149,830.39-43,688.76

Finding the Fourth Proportional to 99,856.05, 149,830.39 and 43,688.76

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Solution

The fourth proportional to 99,856.05, 149,830.39 and 43,688.76 is: 65,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.05 : 149,830.39 = 43,688.76 : x
  2. Step 2: Convert to fraction form
    99,856.05/149,830.39 = 43,688.76/x
  3. Step 3: Cross multiply
    99,856.05x = 149,830.39 × 43,688.76
  4. Step 4: Simplify right side
    99,856.05x = 6,545,903,730.97
  5. Step 5: Solve for x
    x = 6,545,903,730.97/99,856.05
  6. Step 6: Final answer
    x = 65,553.40

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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.