Home / 99,591.93-149,124.24-82,139.67

Finding the Fourth Proportional to 99,591.93, 149,124.24 and 82,139.67

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Solution

The fourth proportional to 99,591.93, 149,124.24 and 82,139.67 is: 122,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,591.93 : 149,124.24 = 82,139.67 : x
  2. Step 2: Convert to fraction form
    99,591.93/149,124.24 = 82,139.67/x
  3. Step 3: Cross multiply
    99,591.93x = 149,124.24 × 82,139.67
  4. Step 4: Simplify right side
    99,591.93x = 12,249,015,862.60
  5. Step 5: Solve for x
    x = 12,249,015,862.60/99,591.93
  6. Step 6: Final answer
    x = 122,992.05

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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.