Home / 132,721.05-183,188.13-81,777.42

Finding the Fourth Proportional to 132,721.05, 183,188.13 and 81,777.42

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Solution

The fourth proportional to 132,721.05, 183,188.13 and 81,777.42 is: 112,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,721.05 : 183,188.13 = 81,777.42 : x
  2. Step 2: Convert to fraction form
    132,721.05/183,188.13 = 81,777.42/x
  3. Step 3: Cross multiply
    132,721.05x = 183,188.13 × 81,777.42
  4. Step 4: Simplify right side
    132,721.05x = 14,980,652,646.02
  5. Step 5: Solve for x
    x = 14,980,652,646.02/132,721.05
  6. Step 6: Final answer
    x = 112,873.22

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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.