Home / 107,265.40-160,905.79-28,378.69

Finding the Fourth Proportional to 107,265.40, 160,905.79 and 28,378.69

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Solution

The fourth proportional to 107,265.40, 160,905.79 and 28,378.69 is: 42,570.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,265.40 : 160,905.79 = 28,378.69 : x
  2. Step 2: Convert to fraction form
    107,265.40/160,905.79 = 28,378.69/x
  3. Step 3: Cross multiply
    107,265.40x = 160,905.79 × 28,378.69
  4. Step 4: Simplify right side
    107,265.40x = 4,566,295,166.82
  5. Step 5: Solve for x
    x = 4,566,295,166.82/107,265.40
  6. Step 6: Final answer
    x = 42,570.07

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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.