Home / 111,550.10-153,710.26-103,674.74

Finding the Fourth Proportional to 111,550.10, 153,710.26 and 103,674.74

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Solution

The fourth proportional to 111,550.10, 153,710.26 and 103,674.74 is: 142,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,550.10 : 153,710.26 = 103,674.74 : x
  2. Step 2: Convert to fraction form
    111,550.10/153,710.26 = 103,674.74/x
  3. Step 3: Cross multiply
    111,550.10x = 153,710.26 × 103,674.74
  4. Step 4: Simplify right side
    111,550.10x = 15,935,870,213.09
  5. Step 5: Solve for x
    x = 15,935,870,213.09/111,550.10
  6. Step 6: Final answer
    x = 142,858.42

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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.