Home / 143,187.39-214,551.45-103,766.72

Finding the Fourth Proportional to 143,187.39, 214,551.45 and 103,766.72

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Solution

The fourth proportional to 143,187.39, 214,551.45 and 103,766.72 is: 155,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.39 : 214,551.45 = 103,766.72 : x
  2. Step 2: Convert to fraction form
    143,187.39/214,551.45 = 103,766.72/x
  3. Step 3: Cross multiply
    143,187.39x = 214,551.45 × 103,766.72
  4. Step 4: Simplify right side
    143,187.39x = 22,263,299,164.99
  5. Step 5: Solve for x
    x = 22,263,299,164.99/143,187.39
  6. Step 6: Final answer
    x = 155,483.66

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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.