Home / 115,555.71-173,289.81-45,396.75

Finding the Fourth Proportional to 115,555.71, 173,289.81 and 45,396.75

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Solution

The fourth proportional to 115,555.71, 173,289.81 and 45,396.75 is: 68,077.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,555.71 : 173,289.81 = 45,396.75 : x
  2. Step 2: Convert to fraction form
    115,555.71/173,289.81 = 45,396.75/x
  3. Step 3: Cross multiply
    115,555.71x = 173,289.81 × 45,396.75
  4. Step 4: Simplify right side
    115,555.71x = 7,866,794,182.12
  5. Step 5: Solve for x
    x = 7,866,794,182.12/115,555.71
  6. Step 6: Final answer
    x = 68,077.94

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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.