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Finding the Fourth Proportional to 101,150.44, 139,587.52 and 56,438.44

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Solution

The fourth proportional to 101,150.44, 139,587.52 and 56,438.44 is: 77,885.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,150.44 : 139,587.52 = 56,438.44 : x
  2. Step 2: Convert to fraction form
    101,150.44/139,587.52 = 56,438.44/x
  3. Step 3: Cross multiply
    101,150.44x = 139,587.52 × 56,438.44
  4. Step 4: Simplify right side
    101,150.44x = 7,878,101,872.27
  5. Step 5: Solve for x
    x = 7,878,101,872.27/101,150.44
  6. Step 6: Final answer
    x = 77,885.00

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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.