Home / 143,320.86-214,986.15-38,139.93

Finding the Fourth Proportional to 143,320.86, 214,986.15 and 38,139.93

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Solution

The fourth proportional to 143,320.86, 214,986.15 and 38,139.93 is: 57,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,320.86 : 214,986.15 = 38,139.93 : x
  2. Step 2: Convert to fraction form
    143,320.86/214,986.15 = 38,139.93/x
  3. Step 3: Cross multiply
    143,320.86x = 214,986.15 × 38,139.93
  4. Step 4: Simplify right side
    143,320.86x = 8,199,556,711.97
  5. Step 5: Solve for x
    x = 8,199,556,711.97/143,320.86
  6. Step 6: Final answer
    x = 57,211.19

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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.