Home / 111,594.07-154,033.95-66,279.43

Finding the Fourth Proportional to 111,594.07, 154,033.95 and 66,279.43

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Solution

The fourth proportional to 111,594.07, 154,033.95 and 66,279.43 is: 91,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,594.07 : 154,033.95 = 66,279.43 : x
  2. Step 2: Convert to fraction form
    111,594.07/154,033.95 = 66,279.43/x
  3. Step 3: Cross multiply
    111,594.07x = 154,033.95 × 66,279.43
  4. Step 4: Simplify right side
    111,594.07x = 10,209,282,406.65
  5. Step 5: Solve for x
    x = 10,209,282,406.65/111,594.07
  6. Step 6: Final answer
    x = 91,485.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.