Home / 144,786.30-217,253.76-68,970.70

Finding the Fourth Proportional to 144,786.30, 217,253.76 and 68,970.70

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Solution

The fourth proportional to 144,786.30, 217,253.76 and 68,970.70 is: 103,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,786.30 : 217,253.76 = 68,970.70 : x
  2. Step 2: Convert to fraction form
    144,786.30/217,253.76 = 68,970.70/x
  3. Step 3: Cross multiply
    144,786.30x = 217,253.76 × 68,970.70
  4. Step 4: Simplify right side
    144,786.30x = 14,984,143,904.83
  5. Step 5: Solve for x
    x = 14,984,143,904.83/144,786.30
  6. Step 6: Final answer
    x = 103,491.45

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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.