Home / 143,932.48-215,595.36-91,314.24

Finding the Fourth Proportional to 143,932.48, 215,595.36 and 91,314.24

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Solution

The fourth proportional to 143,932.48, 215,595.36 and 91,314.24 is: 136,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932.48 : 215,595.36 = 91,314.24 : x
  2. Step 2: Convert to fraction form
    143,932.48/215,595.36 = 91,314.24/x
  3. Step 3: Cross multiply
    143,932.48x = 215,595.36 × 91,314.24
  4. Step 4: Simplify right side
    143,932.48x = 19,686,926,445.93
  5. Step 5: Solve for x
    x = 19,686,926,445.93/143,932.48
  6. Step 6: Final answer
    x = 136,778.90

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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.