Home / 90,935.65-136,277.04-79,065.10

Finding the Fourth Proportional to 90,935.65, 136,277.04 and 79,065.10

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Solution

The fourth proportional to 90,935.65, 136,277.04 and 79,065.10 is: 118,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.65 : 136,277.04 = 79,065.10 : x
  2. Step 2: Convert to fraction form
    90,935.65/136,277.04 = 79,065.10/x
  3. Step 3: Cross multiply
    90,935.65x = 136,277.04 × 79,065.10
  4. Step 4: Simplify right side
    90,935.65x = 10,774,757,795.30
  5. Step 5: Solve for x
    x = 10,774,757,795.30/90,935.65
  6. Step 6: Final answer
    x = 118,487.72

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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.