Home / 155,695.56-214,860.53-87,713.35

Finding the Fourth Proportional to 155,695.56, 214,860.53 and 87,713.35

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Solution

The fourth proportional to 155,695.56, 214,860.53 and 87,713.35 is: 121,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,695.56 : 214,860.53 = 87,713.35 : x
  2. Step 2: Convert to fraction form
    155,695.56/214,860.53 = 87,713.35/x
  3. Step 3: Cross multiply
    155,695.56x = 214,860.53 × 87,713.35
  4. Step 4: Simplify right side
    155,695.56x = 18,846,136,869.08
  5. Step 5: Solve for x
    x = 18,846,136,869.08/155,695.56
  6. Step 6: Final answer
    x = 121,044.79

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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.