Home / 92,905.90-128,263.34-61,167.06

Finding the Fourth Proportional to 92,905.90, 128,263.34 and 61,167.06

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Solution

The fourth proportional to 92,905.90, 128,263.34 and 61,167.06 is: 84,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,905.90 : 128,263.34 = 61,167.06 : x
  2. Step 2: Convert to fraction form
    92,905.90/128,263.34 = 61,167.06/x
  3. Step 3: Cross multiply
    92,905.90x = 128,263.34 × 61,167.06
  4. Step 4: Simplify right side
    92,905.90x = 7,845,491,413.58
  5. Step 5: Solve for x
    x = 7,845,491,413.58/92,905.90
  6. Step 6: Final answer
    x = 84,445.57

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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.