Home / 97,006.72-133,874.76-64,685.56

Finding the Fourth Proportional to 97,006.72, 133,874.76 and 64,685.56

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Solution

The fourth proportional to 97,006.72, 133,874.76 and 64,685.56 is: 89,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,006.72 : 133,874.76 = 64,685.56 : x
  2. Step 2: Convert to fraction form
    97,006.72/133,874.76 = 64,685.56/x
  3. Step 3: Cross multiply
    97,006.72x = 133,874.76 × 64,685.56
  4. Step 4: Simplify right side
    97,006.72x = 8,659,763,820.47
  5. Step 5: Solve for x
    x = 8,659,763,820.47/97,006.72
  6. Step 6: Final answer
    x = 89,269.73

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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.