Home / 131,087.42-196,324.95-120,502.34

Finding the Fourth Proportional to 131,087.42, 196,324.95 and 120,502.34

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Solution

The fourth proportional to 131,087.42, 196,324.95 and 120,502.34 is: 180,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,087.42 : 196,324.95 = 120,502.34 : x
  2. Step 2: Convert to fraction form
    131,087.42/196,324.95 = 120,502.34/x
  3. Step 3: Cross multiply
    131,087.42x = 196,324.95 × 120,502.34
  4. Step 4: Simplify right side
    131,087.42x = 23,657,615,875.38
  5. Step 5: Solve for x
    x = 23,657,615,875.38/131,087.42
  6. Step 6: Final answer
    x = 180,472.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.