Home / 101,869.72-140,581.44-56,548.60

Finding the Fourth Proportional to 101,869.72, 140,581.44 and 56,548.60

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Solution

The fourth proportional to 101,869.72, 140,581.44 and 56,548.60 is: 78,037.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.72 : 140,581.44 = 56,548.60 : x
  2. Step 2: Convert to fraction form
    101,869.72/140,581.44 = 56,548.60/x
  3. Step 3: Cross multiply
    101,869.72x = 140,581.44 × 56,548.60
  4. Step 4: Simplify right side
    101,869.72x = 7,949,683,617.98
  5. Step 5: Solve for x
    x = 7,949,683,617.98/101,869.72
  6. Step 6: Final answer
    x = 78,037.75

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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.