Home / 140,279.77-193,586.16-76,617.82

Finding the Fourth Proportional to 140,279.77, 193,586.16 and 76,617.82

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Solution

The fourth proportional to 140,279.77, 193,586.16 and 76,617.82 is: 105,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,279.77 : 193,586.16 = 76,617.82 : x
  2. Step 2: Convert to fraction form
    140,279.77/193,586.16 = 76,617.82/x
  3. Step 3: Cross multiply
    140,279.77x = 193,586.16 × 76,617.82
  4. Step 4: Simplify right side
    140,279.77x = 14,832,149,561.37
  5. Step 5: Solve for x
    x = 14,832,149,561.37/140,279.77
  6. Step 6: Final answer
    x = 105,732.63

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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.