Home / 142,727.40-213,800.45-67,619.88

Finding the Fourth Proportional to 142,727.40, 213,800.45 and 67,619.88

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Solution

The fourth proportional to 142,727.40, 213,800.45 and 67,619.88 is: 101,292.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,727.40 : 213,800.45 = 67,619.88 : x
  2. Step 2: Convert to fraction form
    142,727.40/213,800.45 = 67,619.88/x
  3. Step 3: Cross multiply
    142,727.40x = 213,800.45 × 67,619.88
  4. Step 4: Simplify right side
    142,727.40x = 14,457,160,434.85
  5. Step 5: Solve for x
    x = 14,457,160,434.85/142,727.40
  6. Step 6: Final answer
    x = 101,292.12

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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.