Home / 131,772.96-181,846.79-71,343.64

Finding the Fourth Proportional to 131,772.96, 181,846.79 and 71,343.64

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Solution

The fourth proportional to 131,772.96, 181,846.79 and 71,343.64 is: 98,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,772.96 : 181,846.79 = 71,343.64 : x
  2. Step 2: Convert to fraction form
    131,772.96/181,846.79 = 71,343.64/x
  3. Step 3: Cross multiply
    131,772.96x = 181,846.79 × 71,343.64
  4. Step 4: Simplify right side
    131,772.96x = 12,973,611,920.92
  5. Step 5: Solve for x
    x = 12,973,611,920.92/131,772.96
  6. Step 6: Final answer
    x = 98,454.28

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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.