Home / 92,010.06-137,839.10-77,112.50

Finding the Fourth Proportional to 92,010.06, 137,839.10 and 77,112.50

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Solution

The fourth proportional to 92,010.06, 137,839.10 and 77,112.50 is: 115,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,010.06 : 137,839.10 = 77,112.50 : x
  2. Step 2: Convert to fraction form
    92,010.06/137,839.10 = 77,112.50/x
  3. Step 3: Cross multiply
    92,010.06x = 137,839.10 × 77,112.50
  4. Step 4: Simplify right side
    92,010.06x = 10,629,117,598.75
  5. Step 5: Solve for x
    x = 10,629,117,598.75/92,010.06
  6. Step 6: Final answer
    x = 115,521.25

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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.