Home / 202,007.39-278,772.03-111,366.63

Finding the Fourth Proportional to 202,007.39, 278,772.03 and 111,366.63

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Solution

The fourth proportional to 202,007.39, 278,772.03 and 111,366.63 is: 153,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,007.39 : 278,772.03 = 111,366.63 : x
  2. Step 2: Convert to fraction form
    202,007.39/278,772.03 = 111,366.63/x
  3. Step 3: Cross multiply
    202,007.39x = 278,772.03 × 111,366.63
  4. Step 4: Simplify right side
    202,007.39x = 31,045,901,519.36
  5. Step 5: Solve for x
    x = 31,045,901,519.36/202,007.39
  6. Step 6: Final answer
    x = 153,686.96

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1.5x scale

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.