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Finding the Fourth Proportional to 101,299.60, 139,802.32 and 67,247.92

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Solution

The fourth proportional to 101,299.60, 139,802.32 and 67,247.92 is: 92,808.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,299.60 : 139,802.32 = 67,247.92 : x
  2. Step 2: Convert to fraction form
    101,299.60/139,802.32 = 67,247.92/x
  3. Step 3: Cross multiply
    101,299.60x = 139,802.32 × 67,247.92
  4. Step 4: Simplify right side
    101,299.60x = 9,401,415,231.17
  5. Step 5: Solve for x
    x = 9,401,415,231.17/101,299.60
  6. Step 6: Final answer
    x = 92,808.02

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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.