Home / 142,737.05-196,952.11-81,455.27

Finding the Fourth Proportional to 142,737.05, 196,952.11 and 81,455.27

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Solution

The fourth proportional to 142,737.05, 196,952.11 and 81,455.27 is: 112,393.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,737.05 : 196,952.11 = 81,455.27 : x
  2. Step 2: Convert to fraction form
    142,737.05/196,952.11 = 81,455.27/x
  3. Step 3: Cross multiply
    142,737.05x = 196,952.11 × 81,455.27
  4. Step 4: Simplify right side
    142,737.05x = 16,042,786,108.72
  5. Step 5: Solve for x
    x = 16,042,786,108.72/142,737.05
  6. Step 6: Final answer
    x = 112,393.98

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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.