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Finding the Fourth Proportional to 101,484.81, 140,049.30 and 56,165.92

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Solution

The fourth proportional to 101,484.81, 140,049.30 and 56,165.92 is: 77,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,484.81 : 140,049.30 = 56,165.92 : x
  2. Step 2: Convert to fraction form
    101,484.81/140,049.30 = 56,165.92/x
  3. Step 3: Cross multiply
    101,484.81x = 140,049.30 × 56,165.92
  4. Step 4: Simplify right side
    101,484.81x = 7,865,997,640.35
  5. Step 5: Solve for x
    x = 7,865,997,640.35/101,484.81
  6. Step 6: Final answer
    x = 77,509.11

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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.