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Finding the Fourth Proportional to 188,593.59, 260,266.10 and 103,718.55

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Solution

The fourth proportional to 188,593.59, 260,266.10 and 103,718.55 is: 143,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,593.59 : 260,266.10 = 103,718.55 : x
  2. Step 2: Convert to fraction form
    188,593.59/260,266.10 = 103,718.55/x
  3. Step 3: Cross multiply
    188,593.59x = 260,266.10 × 103,718.55
  4. Step 4: Simplify right side
    188,593.59x = 26,994,421,987.56
  5. Step 5: Solve for x
    x = 26,994,421,987.56/188,593.59
  6. Step 6: Final answer
    x = 143,135.42

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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.