Home / 156,144.42-215,300.97-124,314.66

Finding the Fourth Proportional to 156,144.42, 215,300.97 and 124,314.66

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Solution

The fourth proportional to 156,144.42, 215,300.97 and 124,314.66 is: 171,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,144.42 : 215,300.97 = 124,314.66 : x
  2. Step 2: Convert to fraction form
    156,144.42/215,300.97 = 124,314.66/x
  3. Step 3: Cross multiply
    156,144.42x = 215,300.97 × 124,314.66
  4. Step 4: Simplify right side
    156,144.42x = 26,765,066,883.22
  5. Step 5: Solve for x
    x = 26,765,066,883.22/156,144.42
  6. Step 6: Final answer
    x = 171,412.25

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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.