Home / 128,537.82-192,806.73-45,373.50

Finding the Fourth Proportional to 128,537.82, 192,806.73 and 45,373.50

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Solution

The fourth proportional to 128,537.82, 192,806.73 and 45,373.50 is: 68,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,537.82 : 192,806.73 = 45,373.50 : x
  2. Step 2: Convert to fraction form
    128,537.82/192,806.73 = 45,373.50/x
  3. Step 3: Cross multiply
    128,537.82x = 192,806.73 × 45,373.50
  4. Step 4: Simplify right side
    128,537.82x = 8,748,316,163.66
  5. Step 5: Solve for x
    x = 8,748,316,163.66/128,537.82
  6. Step 6: Final answer
    x = 68,060.25

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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.