Home / 188,439.80-260,045.70-102,398.36

Finding the Fourth Proportional to 188,439.80, 260,045.70 and 102,398.36

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Solution

The fourth proportional to 188,439.80, 260,045.70 and 102,398.36 is: 141,309.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,439.80 : 260,045.70 = 102,398.36 : x
  2. Step 2: Convert to fraction form
    188,439.80/260,045.70 = 102,398.36/x
  3. Step 3: Cross multiply
    188,439.80x = 260,045.70 × 102,398.36
  4. Step 4: Simplify right side
    188,439.80x = 26,628,253,205.05
  5. Step 5: Solve for x
    x = 26,628,253,205.05/188,439.80
  6. Step 6: Final answer
    x = 141,309.07

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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.