Home / 90,795.54-136,165.62-72,983.94

Finding the Fourth Proportional to 90,795.54, 136,165.62 and 72,983.94

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Solution

The fourth proportional to 90,795.54, 136,165.62 and 72,983.94 is: 109,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,795.54 : 136,165.62 = 72,983.94 : x
  2. Step 2: Convert to fraction form
    90,795.54/136,165.62 = 72,983.94/x
  3. Step 3: Cross multiply
    90,795.54x = 136,165.62 × 72,983.94
  4. Step 4: Simplify right side
    90,795.54x = 9,937,903,440.14
  5. Step 5: Solve for x
    x = 9,937,903,440.14/90,795.54
  6. Step 6: Final answer
    x = 109,453.65

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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.