Home / 140,690.45-194,152.82-77,028.25

Finding the Fourth Proportional to 140,690.45, 194,152.82 and 77,028.25

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Solution

The fourth proportional to 140,690.45, 194,152.82 and 77,028.25 is: 106,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,690.45 : 194,152.82 = 77,028.25 : x
  2. Step 2: Convert to fraction form
    140,690.45/194,152.82 = 77,028.25/x
  3. Step 3: Cross multiply
    140,690.45x = 194,152.82 × 77,028.25
  4. Step 4: Simplify right side
    140,690.45x = 14,955,251,957.17
  5. Step 5: Solve for x
    x = 14,955,251,957.17/140,690.45
  6. Step 6: Final answer
    x = 106,298.98

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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.