Home / 89,355.06-133,363.98-87,878.88

Finding the Fourth Proportional to 89,355.06, 133,363.98 and 87,878.88

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Solution

The fourth proportional to 89,355.06, 133,363.98 and 87,878.88 is: 131,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,355.06 : 133,363.98 = 87,878.88 : x
  2. Step 2: Convert to fraction form
    89,355.06/133,363.98 = 87,878.88/x
  3. Step 3: Cross multiply
    89,355.06x = 133,363.98 × 87,878.88
  4. Step 4: Simplify right side
    89,355.06x = 11,719,877,194.74
  5. Step 5: Solve for x
    x = 11,719,877,194.74/89,355.06
  6. Step 6: Final answer
    x = 131,160.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.