Home / 105,329.13-145,335.51-62,310.43

Finding the Fourth Proportional to 105,329.13, 145,335.51 and 62,310.43

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Solution

The fourth proportional to 105,329.13, 145,335.51 and 62,310.43 is: 85,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,329.13 : 145,335.51 = 62,310.43 : x
  2. Step 2: Convert to fraction form
    105,329.13/145,335.51 = 62,310.43/x
  3. Step 3: Cross multiply
    105,329.13x = 145,335.51 × 62,310.43
  4. Step 4: Simplify right side
    105,329.13x = 9,055,917,966.59
  5. Step 5: Solve for x
    x = 9,055,917,966.59/105,329.13
  6. Step 6: Final answer
    x = 85,977.34

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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.