Home / 140,699.92-194,170.77-77,038.15

Finding the Fourth Proportional to 140,699.92, 194,170.77 and 77,038.15

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Solution

The fourth proportional to 140,699.92, 194,170.77 and 77,038.15 is: 106,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,699.92 : 194,170.77 = 77,038.15 : x
  2. Step 2: Convert to fraction form
    140,699.92/194,170.77 = 77,038.15/x
  3. Step 3: Cross multiply
    140,699.92x = 194,170.77 × 77,038.15
  4. Step 4: Simplify right side
    140,699.92x = 14,958,556,904.88
  5. Step 5: Solve for x
    x = 14,958,556,904.88/140,699.92
  6. Step 6: Final answer
    x = 106,315.32

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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.