Home / 149,751.36-206,653.02-81,770.22

Finding the Fourth Proportional to 149,751.36, 206,653.02 and 81,770.22

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Solution

The fourth proportional to 149,751.36, 206,653.02 and 81,770.22 is: 112,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,751.36 : 206,653.02 = 81,770.22 : x
  2. Step 2: Convert to fraction form
    149,751.36/206,653.02 = 81,770.22/x
  3. Step 3: Cross multiply
    149,751.36x = 206,653.02 × 81,770.22
  4. Step 4: Simplify right side
    149,751.36x = 16,898,062,909.06
  5. Step 5: Solve for x
    x = 16,898,062,909.06/149,751.36
  6. Step 6: Final answer
    x = 112,840.80

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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.