Home / 158,815.47-219,102.84-90,795.90

Finding the Fourth Proportional to 158,815.47, 219,102.84 and 90,795.90

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Solution

The fourth proportional to 158,815.47, 219,102.84 and 90,795.90 is: 125,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,815.47 : 219,102.84 = 90,795.90 : x
  2. Step 2: Convert to fraction form
    158,815.47/219,102.84 = 90,795.90/x
  3. Step 3: Cross multiply
    158,815.47x = 219,102.84 × 90,795.90
  4. Step 4: Simplify right side
    158,815.47x = 19,893,638,775.61
  5. Step 5: Solve for x
    x = 19,893,638,775.61/158,815.47
  6. Step 6: Final answer
    x = 125,262.60

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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.