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Finding the Fourth Proportional to 189,468.66, 261,466.98 and 104,585.72

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Solution

The fourth proportional to 189,468.66, 261,466.98 and 104,585.72 is: 144,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,468.66 : 261,466.98 = 104,585.72 : x
  2. Step 2: Convert to fraction form
    189,468.66/261,466.98 = 104,585.72/x
  3. Step 3: Cross multiply
    189,468.66x = 261,466.98 × 104,585.72
  4. Step 4: Simplify right side
    189,468.66x = 27,345,712,359.53
  5. Step 5: Solve for x
    x = 27,345,712,359.53/189,468.66
  6. Step 6: Final answer
    x = 144,328.42

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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.