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Finding the Fourth Proportional to 188,364.95, 259,943.72 and 103,487.48

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Solution

The fourth proportional to 188,364.95, 259,943.72 and 103,487.48 is: 142,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,364.95 : 259,943.72 = 103,487.48 : x
  2. Step 2: Convert to fraction form
    188,364.95/259,943.72 = 103,487.48/x
  3. Step 3: Cross multiply
    188,364.95x = 259,943.72 × 103,487.48
  4. Step 4: Simplify right side
    188,364.95x = 26,900,918,707.47
  5. Step 5: Solve for x
    x = 26,900,918,707.47/188,364.95
  6. Step 6: Final answer
    x = 142,812.77

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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.