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Finding the Fourth Proportional to 131,314.87, 197,033.81 and 64,718.69

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Solution

The fourth proportional to 131,314.87, 197,033.81 and 64,718.69 is: 97,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,314.87 : 197,033.81 = 64,718.69 : x
  2. Step 2: Convert to fraction form
    131,314.87/197,033.81 = 64,718.69/x
  3. Step 3: Cross multiply
    131,314.87x = 197,033.81 × 64,718.69
  4. Step 4: Simplify right side
    131,314.87x = 12,751,769,745.32
  5. Step 5: Solve for x
    x = 12,751,769,745.32/131,314.87
  6. Step 6: Final answer
    x = 97,108.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.