Home / 89,922.58-135,036.96-86,160.94

Finding the Fourth Proportional to 89,922.58, 135,036.96 and 86,160.94

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Solution

The fourth proportional to 89,922.58, 135,036.96 and 86,160.94 is: 129,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,922.58 : 135,036.96 = 86,160.94 : x
  2. Step 2: Convert to fraction form
    89,922.58/135,036.96 = 86,160.94/x
  3. Step 3: Cross multiply
    89,922.58x = 135,036.96 × 86,160.94
  4. Step 4: Simplify right side
    89,922.58x = 11,634,911,408.34
  5. Step 5: Solve for x
    x = 11,634,911,408.34/89,922.58
  6. Step 6: Final answer
    x = 129,388.10

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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.