Home / 154,897.66-213,749.91-85,983.58

Finding the Fourth Proportional to 154,897.66, 213,749.91 and 85,983.58

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Solution

The fourth proportional to 154,897.66, 213,749.91 and 85,983.58 is: 118,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,897.66 : 213,749.91 = 85,983.58 : x
  2. Step 2: Convert to fraction form
    154,897.66/213,749.91 = 85,983.58/x
  3. Step 3: Cross multiply
    154,897.66x = 213,749.91 × 85,983.58
  4. Step 4: Simplify right side
    154,897.66x = 18,378,982,486.48
  5. Step 5: Solve for x
    x = 18,378,982,486.48/154,897.66
  6. Step 6: Final answer
    x = 118,652.42

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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.