Home / 143,783.10-215,674.65-38,612.70

Finding the Fourth Proportional to 143,783.10, 215,674.65 and 38,612.70

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Solution

The fourth proportional to 143,783.10, 215,674.65 and 38,612.70 is: 57,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,783.10 : 215,674.65 = 38,612.70 : x
  2. Step 2: Convert to fraction form
    143,783.10/215,674.65 = 38,612.70/x
  3. Step 3: Cross multiply
    143,783.10x = 215,674.65 × 38,612.70
  4. Step 4: Simplify right side
    143,783.10x = 8,327,780,558.06
  5. Step 5: Solve for x
    x = 8,327,780,558.06/143,783.10
  6. Step 6: Final answer
    x = 57,919.05

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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.