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Finding the Fourth Proportional to 189,091.66, 260,946.49 and 104,208.72

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Solution

The fourth proportional to 189,091.66, 260,946.49 and 104,208.72 is: 143,808.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,091.66 : 260,946.49 = 104,208.72 : x
  2. Step 2: Convert to fraction form
    189,091.66/260,946.49 = 104,208.72/x
  3. Step 3: Cross multiply
    189,091.66x = 260,946.49 × 104,208.72
  4. Step 4: Simplify right side
    189,091.66x = 27,192,900,624.81
  5. Step 5: Solve for x
    x = 27,192,900,624.81/189,091.66
  6. Step 6: Final answer
    x = 143,808.04

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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.