Home / 90,699.04-135,362.66-88,337.08

Finding the Fourth Proportional to 90,699.04, 135,362.66 and 88,337.08

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Solution

The fourth proportional to 90,699.04, 135,362.66 and 88,337.08 is: 131,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699.04 : 135,362.66 = 88,337.08 : x
  2. Step 2: Convert to fraction form
    90,699.04/135,362.66 = 88,337.08/x
  3. Step 3: Cross multiply
    90,699.04x = 135,362.66 × 88,337.08
  4. Step 4: Simplify right side
    90,699.04x = 11,957,542,125.43
  5. Step 5: Solve for x
    x = 11,957,542,125.43/90,699.04
  6. Step 6: Final answer
    x = 131,837.58

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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.