Home / 105,597.46-145,727.85-57,853.72

Finding the Fourth Proportional to 105,597.46, 145,727.85 and 57,853.72

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Solution

The fourth proportional to 105,597.46, 145,727.85 and 57,853.72 is: 79,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,597.46 : 145,727.85 = 57,853.72 : x
  2. Step 2: Convert to fraction form
    105,597.46/145,727.85 = 57,853.72/x
  3. Step 3: Cross multiply
    105,597.46x = 145,727.85 × 57,853.72
  4. Step 4: Simplify right side
    105,597.46x = 8,430,898,230.10
  5. Step 5: Solve for x
    x = 8,430,898,230.10/105,597.46
  6. Step 6: Final answer
    x = 79,839.97

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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.