Home / 142,065.86-196,046.97-77,536.58

Finding the Fourth Proportional to 142,065.86, 196,046.97 and 77,536.58

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Solution

The fourth proportional to 142,065.86, 196,046.97 and 77,536.58 is: 106,998.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,065.86 : 196,046.97 = 77,536.58 : x
  2. Step 2: Convert to fraction form
    142,065.86/196,046.97 = 77,536.58/x
  3. Step 3: Cross multiply
    142,065.86x = 196,046.97 × 77,536.58
  4. Step 4: Simplify right side
    142,065.86x = 15,200,811,573.16
  5. Step 5: Solve for x
    x = 15,200,811,573.16/142,065.86
  6. Step 6: Final answer
    x = 106,998.34

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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.