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Finding the Fourth Proportional to 101,018.96, 139,406.32 and 58,602.16

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Solution

The fourth proportional to 101,018.96, 139,406.32 and 58,602.16 is: 80,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,018.96 : 139,406.32 = 58,602.16 : x
  2. Step 2: Convert to fraction form
    101,018.96/139,406.32 = 58,602.16/x
  3. Step 3: Cross multiply
    101,018.96x = 139,406.32 × 58,602.16
  4. Step 4: Simplify right side
    101,018.96x = 8,169,511,469.65
  5. Step 5: Solve for x
    x = 8,169,511,469.65/101,018.96
  6. Step 6: Final answer
    x = 80,871.07

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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.