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Finding the Fourth Proportional to 103,952.27, 143,490.99 and 61,510.70

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Solution

The fourth proportional to 103,952.27, 143,490.99 and 61,510.70 is: 84,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,952.27 : 143,490.99 = 61,510.70 : x
  2. Step 2: Convert to fraction form
    103,952.27/143,490.99 = 61,510.70/x
  3. Step 3: Cross multiply
    103,952.27x = 143,490.99 × 61,510.70
  4. Step 4: Simplify right side
    103,952.27x = 8,826,230,521.14
  5. Step 5: Solve for x
    x = 8,826,230,521.14/103,952.27
  6. Step 6: Final answer
    x = 84,906.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.