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Finding the Fourth Proportional to 188,130.98, 259,612.08 and 103,249.46

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Solution

The fourth proportional to 188,130.98, 259,612.08 and 103,249.46 is: 142,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,130.98 : 259,612.08 = 103,249.46 : x
  2. Step 2: Convert to fraction form
    188,130.98/259,612.08 = 103,249.46/x
  3. Step 3: Cross multiply
    188,130.98x = 259,612.08 × 103,249.46
  4. Step 4: Simplify right side
    188,130.98x = 26,804,807,069.48
  5. Step 5: Solve for x
    x = 26,804,807,069.48/188,130.98
  6. Step 6: Final answer
    x = 142,479.50

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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.