Home / 142,584.72-213,909.60-75,989.76

Finding the Fourth Proportional to 142,584.72, 213,909.60 and 75,989.76

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Solution

The fourth proportional to 142,584.72, 213,909.60 and 75,989.76 is: 114,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,584.72 : 213,909.60 = 75,989.76 : x
  2. Step 2: Convert to fraction form
    142,584.72/213,909.60 = 75,989.76/x
  3. Step 3: Cross multiply
    142,584.72x = 213,909.60 × 75,989.76
  4. Step 4: Simplify right side
    142,584.72x = 16,254,939,165.70
  5. Step 5: Solve for x
    x = 16,254,939,165.70/142,584.72
  6. Step 6: Final answer
    x = 114,001.97

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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.