Home / 140,249.10-193,551.01-85,784.20

Finding the Fourth Proportional to 140,249.10, 193,551.01 and 85,784.20

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Solution

The fourth proportional to 140,249.10, 193,551.01 and 85,784.20 is: 118,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249.10 : 193,551.01 = 85,784.20 : x
  2. Step 2: Convert to fraction form
    140,249.10/193,551.01 = 85,784.20/x
  3. Step 3: Cross multiply
    140,249.10x = 193,551.01 × 85,784.20
  4. Step 4: Simplify right side
    140,249.10x = 16,603,618,552.04
  5. Step 5: Solve for x
    x = 16,603,618,552.04/140,249.10
  6. Step 6: Final answer
    x = 118,386.63

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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.