Home / 99,856.40-149,740.86-29,721.74

Finding the Fourth Proportional to 99,856.40, 149,740.86 and 29,721.74

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Solution

The fourth proportional to 99,856.40, 149,740.86 and 29,721.74 is: 44,569.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.40 : 149,740.86 = 29,721.74 : x
  2. Step 2: Convert to fraction form
    99,856.40/149,740.86 = 29,721.74/x
  3. Step 3: Cross multiply
    99,856.40x = 149,740.86 × 29,721.74
  4. Step 4: Simplify right side
    99,856.40x = 4,450,558,908.30
  5. Step 5: Solve for x
    x = 4,450,558,908.30/99,856.40
  6. Step 6: Final answer
    x = 44,569.59

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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.