Home / 131,609.74-181,621.44-71,180.39

Finding the Fourth Proportional to 131,609.74, 181,621.44 and 71,180.39

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Solution

The fourth proportional to 131,609.74, 181,621.44 and 71,180.39 is: 98,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,609.74 : 181,621.44 = 71,180.39 : x
  2. Step 2: Convert to fraction form
    131,609.74/181,621.44 = 71,180.39/x
  3. Step 3: Cross multiply
    131,609.74x = 181,621.44 × 71,180.39
  4. Step 4: Simplify right side
    131,609.74x = 12,927,884,497.46
  5. Step 5: Solve for x
    x = 12,927,884,497.46/131,609.74
  6. Step 6: Final answer
    x = 98,228.93

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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.