Home / 142,586.17-196,818.09-82,180.87

Finding the Fourth Proportional to 142,586.17, 196,818.09 and 82,180.87

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Solution

The fourth proportional to 142,586.17, 196,818.09 and 82,180.87 is: 113,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,586.17 : 196,818.09 = 82,180.87 : x
  2. Step 2: Convert to fraction form
    142,586.17/196,818.09 = 82,180.87/x
  3. Step 3: Cross multiply
    142,586.17x = 196,818.09 × 82,180.87
  4. Step 4: Simplify right side
    142,586.17x = 16,174,681,867.94
  5. Step 5: Solve for x
    x = 16,174,681,867.94/142,586.17
  6. Step 6: Final answer
    x = 113,437.94

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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.