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Finding the Fourth Proportional to 101,224.16, 139,682.40 and 60,930.08

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Solution

The fourth proportional to 101,224.16, 139,682.40 and 60,930.08 is: 84,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,224.16 : 139,682.40 = 60,930.08 : x
  2. Step 2: Convert to fraction form
    101,224.16/139,682.40 = 60,930.08/x
  3. Step 3: Cross multiply
    101,224.16x = 139,682.40 × 60,930.08
  4. Step 4: Simplify right side
    101,224.16x = 8,510,859,806.59
  5. Step 5: Solve for x
    x = 8,510,859,806.59/101,224.16
  6. Step 6: Final answer
    x = 84,079.33

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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.