Home / 141,818.40-195,710.58-78,156.36

Finding the Fourth Proportional to 141,818.40, 195,710.58 and 78,156.36

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Solution

The fourth proportional to 141,818.40, 195,710.58 and 78,156.36 is: 107,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,818.40 : 195,710.58 = 78,156.36 : x
  2. Step 2: Convert to fraction form
    141,818.40/195,710.58 = 78,156.36/x
  3. Step 3: Cross multiply
    141,818.40x = 195,710.58 × 78,156.36
  4. Step 4: Simplify right side
    141,818.40x = 15,296,026,546.29
  5. Step 5: Solve for x
    x = 15,296,026,546.29/141,818.40
  6. Step 6: Final answer
    x = 107,856.43

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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.