Home / 107,379.90-148,135.65-69,125.73

Finding the Fourth Proportional to 107,379.90, 148,135.65 and 69,125.73

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Solution

The fourth proportional to 107,379.90, 148,135.65 and 69,125.73 is: 95,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,379.90 : 148,135.65 = 69,125.73 : x
  2. Step 2: Convert to fraction form
    107,379.90/148,135.65 = 69,125.73/x
  3. Step 3: Cross multiply
    107,379.90x = 148,135.65 × 69,125.73
  4. Step 4: Simplify right side
    107,379.90x = 10,239,984,945.27
  5. Step 5: Solve for x
    x = 10,239,984,945.27/107,379.90
  6. Step 6: Final answer
    x = 95,362.21

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1.5x scale

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.