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Finding the Fourth Proportional to 103,697.20, 143,104.84 and 58,376.84

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Solution

The fourth proportional to 103,697.20, 143,104.84 and 58,376.84 is: 80,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,697.20 : 143,104.84 = 58,376.84 : x
  2. Step 2: Convert to fraction form
    103,697.20/143,104.84 = 58,376.84/x
  3. Step 3: Cross multiply
    103,697.20x = 143,104.84 × 58,376.84
  4. Step 4: Simplify right side
    103,697.20x = 8,354,008,347.91
  5. Step 5: Solve for x
    x = 8,354,008,347.91/103,697.20
  6. Step 6: Final answer
    x = 80,561.56

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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.