Home / 105,299.56-145,313.04-57,552.88

Finding the Fourth Proportional to 105,299.56, 145,313.04 and 57,552.88

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Solution

The fourth proportional to 105,299.56, 145,313.04 and 57,552.88 is: 79,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,299.56 : 145,313.04 = 57,552.88 : x
  2. Step 2: Convert to fraction form
    105,299.56/145,313.04 = 57,552.88/x
  3. Step 3: Cross multiply
    105,299.56x = 145,313.04 × 57,552.88
  4. Step 4: Simplify right side
    105,299.56x = 8,363,183,953.56
  5. Step 5: Solve for x
    x = 8,363,183,953.56/105,299.56
  6. Step 6: Final answer
    x = 79,422.78

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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.