Home / 111,063.90-166,109.85-99,302.70

Finding the Fourth Proportional to 111,063.90, 166,109.85 and 99,302.70

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Solution

The fourth proportional to 111,063.90, 166,109.85 and 99,302.70 is: 148,519.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,063.90 : 166,109.85 = 99,302.70 : x
  2. Step 2: Convert to fraction form
    111,063.90/166,109.85 = 99,302.70/x
  3. Step 3: Cross multiply
    111,063.90x = 166,109.85 × 99,302.70
  4. Step 4: Simplify right side
    111,063.90x = 16,495,156,601.60
  5. Step 5: Solve for x
    x = 16,495,156,601.60/111,063.90
  6. Step 6: Final answer
    x = 148,519.52

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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.