Home / 99,166.20-148,530.60-52,364.40

Finding the Fourth Proportional to 99,166.20, 148,530.60 and 52,364.40

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Solution

The fourth proportional to 99,166.20, 148,530.60 and 52,364.40 is: 78,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,166.20 : 148,530.60 = 52,364.40 : x
  2. Step 2: Convert to fraction form
    99,166.20/148,530.60 = 52,364.40/x
  3. Step 3: Cross multiply
    99,166.20x = 148,530.60 × 52,364.40
  4. Step 4: Simplify right side
    99,166.20x = 7,777,715,750.64
  5. Step 5: Solve for x
    x = 7,777,715,750.64/99,166.20
  6. Step 6: Final answer
    x = 78,431.12

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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.