Home / 107,756.39-148,698.05-61,813.73

Finding the Fourth Proportional to 107,756.39, 148,698.05 and 61,813.73

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Solution

The fourth proportional to 107,756.39, 148,698.05 and 61,813.73 is: 85,299.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,756.39 : 148,698.05 = 61,813.73 : x
  2. Step 2: Convert to fraction form
    107,756.39/148,698.05 = 61,813.73/x
  3. Step 3: Cross multiply
    107,756.39x = 148,698.05 × 61,813.73
  4. Step 4: Simplify right side
    107,756.39x = 9,191,581,176.90
  5. Step 5: Solve for x
    x = 9,191,581,176.90/107,756.39
  6. Step 6: Final answer
    x = 85,299.64

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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.