Home / 208,999.72-288,418.35-113,505.58

Finding the Fourth Proportional to 208,999.72, 288,418.35 and 113,505.58

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Solution

The fourth proportional to 208,999.72, 288,418.35 and 113,505.58 is: 156,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,999.72 : 288,418.35 = 113,505.58 : x
  2. Step 2: Convert to fraction form
    208,999.72/288,418.35 = 113,505.58/x
  3. Step 3: Cross multiply
    208,999.72x = 288,418.35 × 113,505.58
  4. Step 4: Simplify right side
    208,999.72x = 32,737,092,099.39
  5. Step 5: Solve for x
    x = 32,737,092,099.39/208,999.72
  6. Step 6: Final answer
    x = 156,637.01

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1.5x scale

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.