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Finding the Fourth Proportional to 101,000.22, 139,390.16 and 75,462.27

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Solution

The fourth proportional to 101,000.22, 139,390.16 and 75,462.27 is: 104,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,000.22 : 139,390.16 = 75,462.27 : x
  2. Step 2: Convert to fraction form
    101,000.22/139,390.16 = 75,462.27/x
  3. Step 3: Cross multiply
    101,000.22x = 139,390.16 × 75,462.27
  4. Step 4: Simplify right side
    101,000.22x = 10,518,696,989.24
  5. Step 5: Solve for x
    x = 10,518,696,989.24/101,000.22
  6. Step 6: Final answer
    x = 104,145.29

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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.