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Finding the Fourth Proportional to 188,756.39, 260,483.86 and 103,873.45

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Solution

The fourth proportional to 188,756.39, 260,483.86 and 103,873.45 is: 143,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,756.39 : 260,483.86 = 103,873.45 : x
  2. Step 2: Convert to fraction form
    188,756.39/260,483.86 = 103,873.45/x
  3. Step 3: Cross multiply
    188,756.39x = 260,483.86 × 103,873.45
  4. Step 4: Simplify right side
    188,756.39x = 27,057,357,174.56
  5. Step 5: Solve for x
    x = 27,057,357,174.56/188,756.39
  6. Step 6: Final answer
    x = 143,345.39

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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.