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Finding the Fourth Proportional to 144,378.98, 216,423.02 and 60,185.72

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Solution

The fourth proportional to 144,378.98, 216,423.02 and 60,185.72 is: 90,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,378.98 : 216,423.02 = 60,185.72 : x
  2. Step 2: Convert to fraction form
    144,378.98/216,423.02 = 60,185.72/x
  3. Step 3: Cross multiply
    144,378.98x = 216,423.02 × 60,185.72
  4. Step 4: Simplify right side
    144,378.98x = 13,025,575,283.27
  5. Step 5: Solve for x
    x = 13,025,575,283.27/144,378.98
  6. Step 6: Final answer
    x = 90,217.95

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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.