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Finding the Fourth Proportional to 189,109.18, 260,969.88 and 104,226.04

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Solution

The fourth proportional to 189,109.18, 260,969.88 and 104,226.04 is: 143,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,109.18 : 260,969.88 = 104,226.04 : x
  2. Step 2: Convert to fraction form
    189,109.18/260,969.88 = 104,226.04/x
  3. Step 3: Cross multiply
    189,109.18x = 260,969.88 × 104,226.04
  4. Step 4: Simplify right side
    189,109.18x = 27,199,857,151.68
  5. Step 5: Solve for x
    x = 27,199,857,151.68/189,109.18
  6. Step 6: Final answer
    x = 143,831.50

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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.