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Finding the Fourth Proportional to 101,047.77, 139,410.11 and 60,730.43

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Solution

The fourth proportional to 101,047.77, 139,410.11 and 60,730.43 is: 83,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,047.77 : 139,410.11 = 60,730.43 : x
  2. Step 2: Convert to fraction form
    101,047.77/139,410.11 = 60,730.43/x
  3. Step 3: Cross multiply
    101,047.77x = 139,410.11 × 60,730.43
  4. Step 4: Simplify right side
    101,047.77x = 8,466,435,381.42
  5. Step 5: Solve for x
    x = 8,466,435,381.42/101,047.77
  6. Step 6: Final answer
    x = 83,786.46

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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.