Home / 140,521.80-193,924.70-76,859.59

Finding the Fourth Proportional to 140,521.80, 193,924.70 and 76,859.59

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Solution

The fourth proportional to 140,521.80, 193,924.70 and 76,859.59 is: 106,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,521.80 : 193,924.70 = 76,859.59 : x
  2. Step 2: Convert to fraction form
    140,521.80/193,924.70 = 76,859.59/x
  3. Step 3: Cross multiply
    140,521.80x = 193,924.70 × 76,859.59
  4. Step 4: Simplify right side
    140,521.80x = 14,904,972,548.58
  5. Step 5: Solve for x
    x = 14,904,972,548.58/140,521.80
  6. Step 6: Final answer
    x = 106,068.76

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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.