Home / 137,960.90-190,402.95-77,534.09

Finding the Fourth Proportional to 137,960.90, 190,402.95 and 77,534.09

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Solution

The fourth proportional to 137,960.90, 190,402.95 and 77,534.09 is: 107,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,960.90 : 190,402.95 = 77,534.09 : x
  2. Step 2: Convert to fraction form
    137,960.90/190,402.95 = 77,534.09/x
  3. Step 3: Cross multiply
    137,960.90x = 190,402.95 × 77,534.09
  4. Step 4: Simplify right side
    137,960.90x = 14,762,718,121.88
  5. Step 5: Solve for x
    x = 14,762,718,121.88/137,960.90
  6. Step 6: Final answer
    x = 107,006.54

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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.