Home / 140,641.05-194,083.01-76,108.79

Finding the Fourth Proportional to 140,641.05, 194,083.01 and 76,108.79

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Solution

The fourth proportional to 140,641.05, 194,083.01 and 76,108.79 is: 105,029.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,641.05 : 194,083.01 = 76,108.79 : x
  2. Step 2: Convert to fraction form
    140,641.05/194,083.01 = 76,108.79/x
  3. Step 3: Cross multiply
    140,641.05x = 194,083.01 × 76,108.79
  4. Step 4: Simplify right side
    140,641.05x = 14,771,423,155.32
  5. Step 5: Solve for x
    x = 14,771,423,155.32/140,641.05
  6. Step 6: Final answer
    x = 105,029.24

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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.