Home / 131,859.03-181,966.34-71,429.68

Finding the Fourth Proportional to 131,859.03, 181,966.34 and 71,429.68

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Solution

The fourth proportional to 131,859.03, 181,966.34 and 71,429.68 is: 98,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,859.03 : 181,966.34 = 71,429.68 : x
  2. Step 2: Convert to fraction form
    131,859.03/181,966.34 = 71,429.68/x
  3. Step 3: Cross multiply
    131,859.03x = 181,966.34 × 71,429.68
  4. Step 4: Simplify right side
    131,859.03x = 12,997,797,436.97
  5. Step 5: Solve for x
    x = 12,997,797,436.97/131,859.03
  6. Step 6: Final answer
    x = 98,573.43

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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.