Home / 131,706.75-181,755.27-71,277.36

Finding the Fourth Proportional to 131,706.75, 181,755.27 and 71,277.36

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Solution

The fourth proportional to 131,706.75, 181,755.27 and 71,277.36 is: 98,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,706.75 : 181,755.27 = 71,277.36 : x
  2. Step 2: Convert to fraction form
    131,706.75/181,755.27 = 71,277.36/x
  3. Step 3: Cross multiply
    131,706.75x = 181,755.27 × 71,277.36
  4. Step 4: Simplify right side
    131,706.75x = 12,955,035,811.69
  5. Step 5: Solve for x
    x = 12,955,035,811.69/131,706.75
  6. Step 6: Final answer
    x = 98,362.73

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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.