Home / 142,163.64-196,196.15-81,753.23

Finding the Fourth Proportional to 142,163.64, 196,196.15 and 81,753.23

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Solution

The fourth proportional to 142,163.64, 196,196.15 and 81,753.23 is: 112,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,163.64 : 196,196.15 = 81,753.23 : x
  2. Step 2: Convert to fraction form
    142,163.64/196,196.15 = 81,753.23/x
  3. Step 3: Cross multiply
    142,163.64x = 196,196.15 × 81,753.23
  4. Step 4: Simplify right side
    142,163.64x = 16,039,669,670.94
  5. Step 5: Solve for x
    x = 16,039,669,670.94/142,163.64
  6. Step 6: Final answer
    x = 112,825.40

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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.