Home / 131,148.61-180,997.01-74,559.85

Finding the Fourth Proportional to 131,148.61, 180,997.01 and 74,559.85

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Solution

The fourth proportional to 131,148.61, 180,997.01 and 74,559.85 is: 102,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,148.61 : 180,997.01 = 74,559.85 : x
  2. Step 2: Convert to fraction form
    131,148.61/180,997.01 = 74,559.85/x
  3. Step 3: Cross multiply
    131,148.61x = 180,997.01 × 74,559.85
  4. Step 4: Simplify right side
    131,148.61x = 13,495,109,916.05
  5. Step 5: Solve for x
    x = 13,495,109,916.05/131,148.61
  6. Step 6: Final answer
    x = 102,899.37

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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.