Home / 140,883.07-194,417.49-77,220.73

Finding the Fourth Proportional to 140,883.07, 194,417.49 and 77,220.73

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Solution

The fourth proportional to 140,883.07, 194,417.49 and 77,220.73 is: 106,563.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,883.07 : 194,417.49 = 77,220.73 : x
  2. Step 2: Convert to fraction form
    140,883.07/194,417.49 = 77,220.73/x
  3. Step 3: Cross multiply
    140,883.07x = 194,417.49 × 77,220.73
  4. Step 4: Simplify right side
    140,883.07x = 15,013,060,502.57
  5. Step 5: Solve for x
    x = 15,013,060,502.57/140,883.07
  6. Step 6: Final answer
    x = 106,563.98

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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.