Home / 143,441.40-215,064.90-75,984.60

Finding the Fourth Proportional to 143,441.40, 215,064.90 and 75,984.60

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Solution

The fourth proportional to 143,441.40, 215,064.90 and 75,984.60 is: 113,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,441.40 : 215,064.90 = 75,984.60 : x
  2. Step 2: Convert to fraction form
    143,441.40/215,064.90 = 75,984.60/x
  3. Step 3: Cross multiply
    143,441.40x = 215,064.90 × 75,984.60
  4. Step 4: Simplify right side
    143,441.40x = 16,341,620,400.54
  5. Step 5: Solve for x
    x = 16,341,620,400.54/143,441.40
  6. Step 6: Final answer
    x = 113,925.41

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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.