Home / 105,108.76-145,022.97-62,637.22

Finding the Fourth Proportional to 105,108.76, 145,022.97 and 62,637.22

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Solution

The fourth proportional to 105,108.76, 145,022.97 and 62,637.22 is: 86,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,108.76 : 145,022.97 = 62,637.22 : x
  2. Step 2: Convert to fraction form
    105,108.76/145,022.97 = 62,637.22/x
  3. Step 3: Cross multiply
    105,108.76x = 145,022.97 × 62,637.22
  4. Step 4: Simplify right side
    105,108.76x = 9,083,835,676.94
  5. Step 5: Solve for x
    x = 9,083,835,676.94/105,108.76
  6. Step 6: Final answer
    x = 86,423.20

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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.