Home / 143,920.86-215,896.65-38,741.34

Finding the Fourth Proportional to 143,920.86, 215,896.65 and 38,741.34

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Solution

The fourth proportional to 143,920.86, 215,896.65 and 38,741.34 is: 58,116.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,920.86 : 215,896.65 = 38,741.34 : x
  2. Step 2: Convert to fraction form
    143,920.86/215,896.65 = 38,741.34/x
  3. Step 3: Cross multiply
    143,920.86x = 215,896.65 × 38,741.34
  4. Step 4: Simplify right side
    143,920.86x = 8,364,125,522.51
  5. Step 5: Solve for x
    x = 8,364,125,522.51/143,920.86
  6. Step 6: Final answer
    x = 58,116.14

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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.