Home / 105,418.97-145,475.39-62,400.68

Finding the Fourth Proportional to 105,418.97, 145,475.39 and 62,400.68

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Solution

The fourth proportional to 105,418.97, 145,475.39 and 62,400.68 is: 86,111.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,418.97 : 145,475.39 = 62,400.68 : x
  2. Step 2: Convert to fraction form
    105,418.97/145,475.39 = 62,400.68/x
  3. Step 3: Cross multiply
    105,418.97x = 145,475.39 × 62,400.68
  4. Step 4: Simplify right side
    105,418.97x = 9,077,763,233.42
  5. Step 5: Solve for x
    x = 9,077,763,233.42/105,418.97
  6. Step 6: Final answer
    x = 86,111.29

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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.