Home / 107,458.08-148,311.05-62,128.86

Finding the Fourth Proportional to 107,458.08, 148,311.05 and 62,128.86

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Solution

The fourth proportional to 107,458.08, 148,311.05 and 62,128.86 is: 85,748.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,458.08 : 148,311.05 = 62,128.86 : x
  2. Step 2: Convert to fraction form
    107,458.08/148,311.05 = 62,128.86/x
  3. Step 3: Cross multiply
    107,458.08x = 148,311.05 × 62,128.86
  4. Step 4: Simplify right side
    107,458.08x = 9,214,395,944.57
  5. Step 5: Solve for x
    x = 9,214,395,944.57/107,458.08
  6. Step 6: Final answer
    x = 85,748.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.