Home / 105,741.28-145,923.06-57,995.56

Finding the Fourth Proportional to 105,741.28, 145,923.06 and 57,995.56

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Solution

The fourth proportional to 105,741.28, 145,923.06 and 57,995.56 is: 80,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,741.28 : 145,923.06 = 57,995.56 : x
  2. Step 2: Convert to fraction form
    105,741.28/145,923.06 = 57,995.56/x
  3. Step 3: Cross multiply
    105,741.28x = 145,923.06 × 57,995.56
  4. Step 4: Simplify right side
    105,741.28x = 8,462,889,581.61
  5. Step 5: Solve for x
    x = 8,462,889,581.61/105,741.28
  6. Step 6: Final answer
    x = 80,033.92

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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.