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Finding the Fourth Proportional to 188,437.92, 260,043.48 and 107,865

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Solution

The fourth proportional to 188,437.92, 260,043.48 and 107,865 is: 148,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,437.92 : 260,043.48 = 107,865 : x
  2. Step 2: Convert to fraction form
    188,437.92/260,043.48 = 107,865/x
  3. Step 3: Cross multiply
    188,437.92x = 260,043.48 × 107,865
  4. Step 4: Simplify right side
    188,437.92x = 28,049,589,970.20
  5. Step 5: Solve for x
    x = 28,049,589,970.20/188,437.92
  6. Step 6: Final answer
    x = 148,853.21

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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.