Home / 131,611.66-181,624.10-71,182.31

Finding the Fourth Proportional to 131,611.66, 181,624.10 and 71,182.31

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Solution

The fourth proportional to 131,611.66, 181,624.10 and 71,182.31 is: 98,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,611.66 : 181,624.10 = 71,182.31 : x
  2. Step 2: Convert to fraction form
    131,611.66/181,624.10 = 71,182.31/x
  3. Step 3: Cross multiply
    131,611.66x = 181,624.10 × 71,182.31
  4. Step 4: Simplify right side
    131,611.66x = 12,928,421,725.64
  5. Step 5: Solve for x
    x = 12,928,421,725.64/131,611.66
  6. Step 6: Final answer
    x = 98,231.59

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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.