Home / 138,964.92-191,770.94-75,302.76

Finding the Fourth Proportional to 138,964.92, 191,770.94 and 75,302.76

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Solution

The fourth proportional to 138,964.92, 191,770.94 and 75,302.76 is: 103,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,964.92 : 191,770.94 = 75,302.76 : x
  2. Step 2: Convert to fraction form
    138,964.92/191,770.94 = 75,302.76/x
  3. Step 3: Cross multiply
    138,964.92x = 191,770.94 × 75,302.76
  4. Step 4: Simplify right side
    138,964.92x = 14,440,881,069.79
  5. Step 5: Solve for x
    x = 14,440,881,069.79/138,964.92
  6. Step 6: Final answer
    x = 103,917.46

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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.