Home / 138,910.02-191,695.62-75,248.07

Finding the Fourth Proportional to 138,910.02, 191,695.62 and 75,248.07

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Solution

The fourth proportional to 138,910.02, 191,695.62 and 75,248.07 is: 103,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,910.02 : 191,695.62 = 75,248.07 : x
  2. Step 2: Convert to fraction form
    138,910.02/191,695.62 = 75,248.07/x
  3. Step 3: Cross multiply
    138,910.02x = 191,695.62 × 75,248.07
  4. Step 4: Simplify right side
    138,910.02x = 14,424,725,432.45
  5. Step 5: Solve for x
    x = 14,424,725,432.45/138,910.02
  6. Step 6: Final answer
    x = 103,842.22

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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.