Home / 140,672.74-194,131.80-77,010.34

Finding the Fourth Proportional to 140,672.74, 194,131.80 and 77,010.34

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Solution

The fourth proportional to 140,672.74, 194,131.80 and 77,010.34 is: 106,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,672.74 : 194,131.80 = 77,010.34 : x
  2. Step 2: Convert to fraction form
    140,672.74/194,131.80 = 77,010.34/x
  3. Step 3: Cross multiply
    140,672.74x = 194,131.80 × 77,010.34
  4. Step 4: Simplify right side
    140,672.74x = 14,950,155,922.81
  5. Step 5: Solve for x
    x = 14,950,155,922.81/140,672.74
  6. Step 6: Final answer
    x = 106,276.14

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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.