Home / 131,829.33-181,923.57-71,398.59

Finding the Fourth Proportional to 131,829.33, 181,923.57 and 71,398.59

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Solution

The fourth proportional to 131,829.33, 181,923.57 and 71,398.59 is: 98,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,829.33 : 181,923.57 = 71,398.59 : x
  2. Step 2: Convert to fraction form
    131,829.33/181,923.57 = 71,398.59/x
  3. Step 3: Cross multiply
    131,829.33x = 181,923.57 × 71,398.59
  4. Step 4: Simplify right side
    131,829.33x = 12,989,086,385.77
  5. Step 5: Solve for x
    x = 12,989,086,385.77/131,829.33
  6. Step 6: Final answer
    x = 98,529.56

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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.