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Finding the Fourth Proportional to 101,241.79, 139,715.14 and 58,800.32

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Solution

The fourth proportional to 101,241.79, 139,715.14 and 58,800.32 is: 81,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,241.79 : 139,715.14 = 58,800.32 : x
  2. Step 2: Convert to fraction form
    101,241.79/139,715.14 = 58,800.32/x
  3. Step 3: Cross multiply
    101,241.79x = 139,715.14 × 58,800.32
  4. Step 4: Simplify right side
    101,241.79x = 8,215,294,940.84
  5. Step 5: Solve for x
    x = 8,215,294,940.84/101,241.79
  6. Step 6: Final answer
    x = 81,145.30

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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.