Home / 155,793.61-214,743.31-121,742.92

Finding the Fourth Proportional to 155,793.61, 214,743.31 and 121,742.92

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Solution

The fourth proportional to 155,793.61, 214,743.31 and 121,742.92 is: 167,808.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,793.61 : 214,743.31 = 121,742.92 : x
  2. Step 2: Convert to fraction form
    155,793.61/214,743.31 = 121,742.92/x
  3. Step 3: Cross multiply
    155,793.61x = 214,743.31 × 121,742.92
  4. Step 4: Simplify right side
    155,793.61x = 26,143,477,609.87
  5. Step 5: Solve for x
    x = 26,143,477,609.87/155,793.61
  6. Step 6: Final answer
    x = 167,808.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.