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Finding the Fourth Proportional to 135,523.82, 203,302.13 and 128,060.69

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Solution

The fourth proportional to 135,523.82, 203,302.13 and 128,060.69 is: 192,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,523.82 : 203,302.13 = 128,060.69 : x
  2. Step 2: Convert to fraction form
    135,523.82/203,302.13 = 128,060.69/x
  3. Step 3: Cross multiply
    135,523.82x = 203,302.13 × 128,060.69
  4. Step 4: Simplify right side
    135,523.82x = 26,035,009,389.46
  5. Step 5: Solve for x
    x = 26,035,009,389.46/135,523.82
  6. Step 6: Final answer
    x = 192,106.53

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1.5x scale

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.