Home / 151,655.22-209,285.10-83,671.11

Finding the Fourth Proportional to 151,655.22, 209,285.10 and 83,671.11

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Solution

The fourth proportional to 151,655.22, 209,285.10 and 83,671.11 is: 115,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,655.22 : 209,285.10 = 83,671.11 : x
  2. Step 2: Convert to fraction form
    151,655.22/209,285.10 = 83,671.11/x
  3. Step 3: Cross multiply
    151,655.22x = 209,285.10 × 83,671.11
  4. Step 4: Simplify right side
    151,655.22x = 17,511,116,623.46
  5. Step 5: Solve for x
    x = 17,511,116,623.46/151,655.22
  6. Step 6: Final answer
    x = 115,466.63

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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.