Home / 147,121.06-203,031.01-83,468.42

Finding the Fourth Proportional to 147,121.06, 203,031.01 and 83,468.42

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Solution

The fourth proportional to 147,121.06, 203,031.01 and 83,468.42 is: 115,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,121.06 : 203,031.01 = 83,468.42 : x
  2. Step 2: Convert to fraction form
    147,121.06/203,031.01 = 83,468.42/x
  3. Step 3: Cross multiply
    147,121.06x = 203,031.01 × 83,468.42
  4. Step 4: Simplify right side
    147,121.06x = 16,946,677,615.70
  5. Step 5: Solve for x
    x = 16,946,677,615.70/147,121.06
  6. Step 6: Final answer
    x = 115,188.66

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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.