Home / 143,921.86-215,898.15-38,742.34

Finding the Fourth Proportional to 143,921.86, 215,898.15 and 38,742.34

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Solution

The fourth proportional to 143,921.86, 215,898.15 and 38,742.34 is: 58,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,921.86 : 215,898.15 = 38,742.34 : x
  2. Step 2: Convert to fraction form
    143,921.86/215,898.15 = 38,742.34/x
  3. Step 3: Cross multiply
    143,921.86x = 215,898.15 × 38,742.34
  4. Step 4: Simplify right side
    143,921.86x = 8,364,399,532.67
  5. Step 5: Solve for x
    x = 8,364,399,532.67/143,921.86
  6. Step 6: Final answer
    x = 58,117.64

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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.