Home / 105,651.94-145,778.13-62,612.46

Finding the Fourth Proportional to 105,651.94, 145,778.13 and 62,612.46

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Solution

The fourth proportional to 105,651.94, 145,778.13 and 62,612.46 is: 86,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.94 : 145,778.13 = 62,612.46 : x
  2. Step 2: Convert to fraction form
    105,651.94/145,778.13 = 62,612.46/x
  3. Step 3: Cross multiply
    105,651.94x = 145,778.13 × 62,612.46
  4. Step 4: Simplify right side
    105,651.94x = 9,127,527,333.50
  5. Step 5: Solve for x
    x = 9,127,527,333.50/105,651.94
  6. Step 6: Final answer
    x = 86,392.43

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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.