Home / 188,781.39-260,518.14-103,903.92

Finding the Fourth Proportional to 188,781.39, 260,518.14 and 103,903.92

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Solution

The fourth proportional to 188,781.39, 260,518.14 and 103,903.92 is: 143,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,781.39 : 260,518.14 = 103,903.92 : x
  2. Step 2: Convert to fraction form
    188,781.39/260,518.14 = 103,903.92/x
  3. Step 3: Cross multiply
    188,781.39x = 260,518.14 × 103,903.92
  4. Step 4: Simplify right side
    188,781.39x = 27,068,855,977.11
  5. Step 5: Solve for x
    x = 27,068,855,977.11/188,781.39
  6. Step 6: Final answer
    x = 143,387.31

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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.