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Finding the Fourth Proportional to 99,803.88, 149,705.40 and 40,625.52

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Solution

The fourth proportional to 99,803.88, 149,705.40 and 40,625.52 is: 60,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,803.88 : 149,705.40 = 40,625.52 : x
  2. Step 2: Convert to fraction form
    99,803.88/149,705.40 = 40,625.52/x
  3. Step 3: Cross multiply
    99,803.88x = 149,705.40 × 40,625.52
  4. Step 4: Simplify right side
    99,803.88x = 6,081,859,721.81
  5. Step 5: Solve for x
    x = 6,081,859,721.81/99,803.88
  6. Step 6: Final answer
    x = 60,938.11

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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.