Home / 161,919.40-242,879.10-51,111.40

Finding the Fourth Proportional to 161,919.40, 242,879.10 and 51,111.40

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Solution

The fourth proportional to 161,919.40, 242,879.10 and 51,111.40 is: 76,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,919.40 : 242,879.10 = 51,111.40 : x
  2. Step 2: Convert to fraction form
    161,919.40/242,879.10 = 51,111.40/x
  3. Step 3: Cross multiply
    161,919.40x = 242,879.10 × 51,111.40
  4. Step 4: Simplify right side
    161,919.40x = 12,413,890,831.74
  5. Step 5: Solve for x
    x = 12,413,890,831.74/161,919.40
  6. Step 6: Final answer
    x = 76,667.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.