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Finding the Fourth Proportional to 96,573.80, 144,860.70 and 81,993.80

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Solution

The fourth proportional to 96,573.80, 144,860.70 and 81,993.80 is: 122,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,573.80 : 144,860.70 = 81,993.80 : x
  2. Step 2: Convert to fraction form
    96,573.80/144,860.70 = 81,993.80/x
  3. Step 3: Cross multiply
    96,573.80x = 144,860.70 × 81,993.80
  4. Step 4: Simplify right side
    96,573.80x = 11,877,679,263.66
  5. Step 5: Solve for x
    x = 11,877,679,263.66/96,573.80
  6. Step 6: Final answer
    x = 122,990.70

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1.5x scale

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.