Home / 92,504.61-138,673.85-76,810.50

Finding the Fourth Proportional to 92,504.61, 138,673.85 and 76,810.50

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Solution

The fourth proportional to 92,504.61, 138,673.85 and 76,810.50 is: 115,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,504.61 : 138,673.85 = 76,810.50 : x
  2. Step 2: Convert to fraction form
    92,504.61/138,673.85 = 76,810.50/x
  3. Step 3: Cross multiply
    92,504.61x = 138,673.85 × 76,810.50
  4. Step 4: Simplify right side
    92,504.61x = 10,651,607,371.37
  5. Step 5: Solve for x
    x = 10,651,607,371.37/92,504.61
  6. Step 6: Final answer
    x = 115,146.77

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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.