Home / 99,955.36-149,981.91-43,787.80

Finding the Fourth Proportional to 99,955.36, 149,981.91 and 43,787.80

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Solution

The fourth proportional to 99,955.36, 149,981.91 and 43,787.80 is: 65,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,955.36 : 149,981.91 = 43,787.80 : x
  2. Step 2: Convert to fraction form
    99,955.36/149,981.91 = 43,787.80/x
  3. Step 3: Cross multiply
    99,955.36x = 149,981.91 × 43,787.80
  4. Step 4: Simplify right side
    99,955.36x = 6,567,377,878.70
  5. Step 5: Solve for x
    x = 6,567,377,878.70/99,955.36
  6. Step 6: Final answer
    x = 65,703.11

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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.