Home / 131,721.53-181,775.48-71,292.15

Finding the Fourth Proportional to 131,721.53, 181,775.48 and 71,292.15

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Solution

The fourth proportional to 131,721.53, 181,775.48 and 71,292.15 is: 98,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,721.53 : 181,775.48 = 71,292.15 : x
  2. Step 2: Convert to fraction form
    131,721.53/181,775.48 = 71,292.15/x
  3. Step 3: Cross multiply
    131,721.53x = 181,775.48 × 71,292.15
  4. Step 4: Simplify right side
    131,721.53x = 12,959,164,430.02
  5. Step 5: Solve for x
    x = 12,959,164,430.02/131,721.53
  6. Step 6: Final answer
    x = 98,383.04

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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.