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Finding the Fourth Proportional to 105,756.75, 145,944.32 and 58,010.21

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Solution

The fourth proportional to 105,756.75, 145,944.32 and 58,010.21 is: 80,054.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,756.75 : 145,944.32 = 58,010.21 : x
  2. Step 2: Convert to fraction form
    105,756.75/145,944.32 = 58,010.21/x
  3. Step 3: Cross multiply
    105,756.75x = 145,944.32 × 58,010.21
  4. Step 4: Simplify right side
    105,756.75x = 8,466,260,179.03
  5. Step 5: Solve for x
    x = 8,466,260,179.03/105,756.75
  6. Step 6: Final answer
    x = 80,054.09

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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.