Home / 149,613.95-206,466.23-81,631.06

Finding the Fourth Proportional to 149,613.95, 206,466.23 and 81,631.06

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Solution

The fourth proportional to 149,613.95, 206,466.23 and 81,631.06 is: 112,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,613.95 : 206,466.23 = 81,631.06 : x
  2. Step 2: Convert to fraction form
    149,613.95/206,466.23 = 81,631.06/x
  3. Step 3: Cross multiply
    149,613.95x = 206,466.23 × 81,631.06
  4. Step 4: Simplify right side
    149,613.95x = 16,854,056,897.02
  5. Step 5: Solve for x
    x = 16,854,056,897.02/149,613.95
  6. Step 6: Final answer
    x = 112,650.30

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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.