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Finding the Fourth Proportional to 126,530.61, 174,606.84 and 69,168.87

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Solution

The fourth proportional to 126,530.61, 174,606.84 and 69,168.87 is: 95,450.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,530.61 : 174,606.84 = 69,168.87 : x
  2. Step 2: Convert to fraction form
    126,530.61/174,606.84 = 69,168.87/x
  3. Step 3: Cross multiply
    126,530.61x = 174,606.84 × 69,168.87
  4. Step 4: Simplify right side
    126,530.61x = 12,077,357,817.07
  5. Step 5: Solve for x
    x = 12,077,357,817.07/126,530.61
  6. Step 6: Final answer
    x = 95,450.09

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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.