Home / 136,748.82-205,160.91-47,990.64

Finding the Fourth Proportional to 136,748.82, 205,160.91 and 47,990.64

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Solution

The fourth proportional to 136,748.82, 205,160.91 and 47,990.64 is: 71,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,748.82 : 205,160.91 = 47,990.64 : x
  2. Step 2: Convert to fraction form
    136,748.82/205,160.91 = 47,990.64/x
  3. Step 3: Cross multiply
    136,748.82x = 205,160.91 × 47,990.64
  4. Step 4: Simplify right side
    136,748.82x = 9,845,803,373.88
  5. Step 5: Solve for x
    x = 9,845,803,373.88/136,748.82
  6. Step 6: Final answer
    x = 71,999.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.