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Finding the Fourth Proportional to 189,750, 261,832.32 and 104,855.52

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Solution

The fourth proportional to 189,750, 261,832.32 and 104,855.52 is: 144,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,750 : 261,832.32 = 104,855.52 : x
  2. Step 2: Convert to fraction form
    189,750/261,832.32 = 104,855.52/x
  3. Step 3: Cross multiply
    189,750x = 261,832.32 × 104,855.52
  4. Step 4: Simplify right side
    189,750x = 27,454,564,066.41
  5. Step 5: Solve for x
    x = 27,454,564,066.41/189,750
  6. Step 6: Final answer
    x = 144,688.08

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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.