Home / 105,740.28-145,921.68-57,994.56

Finding the Fourth Proportional to 105,740.28, 145,921.68 and 57,994.56

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Solution

The fourth proportional to 105,740.28, 145,921.68 and 57,994.56 is: 80,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,740.28 : 145,921.68 = 57,994.56 : x
  2. Step 2: Convert to fraction form
    105,740.28/145,921.68 = 57,994.56/x
  3. Step 3: Cross multiply
    105,740.28x = 145,921.68 × 57,994.56
  4. Step 4: Simplify right side
    105,740.28x = 8,462,663,626.06
  5. Step 5: Solve for x
    x = 8,462,663,626.06/105,740.28
  6. Step 6: Final answer
    x = 80,032.54

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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.