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Finding the Fourth Proportional to 101,118.16, 139,590.30 and 58,669.30

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Solution

The fourth proportional to 101,118.16, 139,590.30 and 58,669.30 is: 80,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,118.16 : 139,590.30 = 58,669.30 : x
  2. Step 2: Convert to fraction form
    101,118.16/139,590.30 = 58,669.30/x
  3. Step 3: Cross multiply
    101,118.16x = 139,590.30 × 58,669.30
  4. Step 4: Simplify right side
    101,118.16x = 8,189,665,187.79
  5. Step 5: Solve for x
    x = 8,189,665,187.79/101,118.16
  6. Step 6: Final answer
    x = 80,991.04

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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.