Home / 143,350.32-214,755.74-84,009.72

Finding the Fourth Proportional to 143,350.32, 214,755.74 and 84,009.72

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Solution

The fourth proportional to 143,350.32, 214,755.74 and 84,009.72 is: 125,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,350.32 : 214,755.74 = 84,009.72 : x
  2. Step 2: Convert to fraction form
    143,350.32/214,755.74 = 84,009.72/x
  3. Step 3: Cross multiply
    143,350.32x = 214,755.74 × 84,009.72
  4. Step 4: Simplify right side
    143,350.32x = 18,041,569,585.79
  5. Step 5: Solve for x
    x = 18,041,569,585.79/143,350.32
  6. Step 6: Final answer
    x = 125,856.50

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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.