Home / 157,559.91-217,539.15-121,196.79

Finding the Fourth Proportional to 157,559.91, 217,539.15 and 121,196.79

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Solution

The fourth proportional to 157,559.91, 217,539.15 and 121,196.79 is: 167,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,559.91 : 217,539.15 = 121,196.79 : x
  2. Step 2: Convert to fraction form
    157,559.91/217,539.15 = 121,196.79/x
  3. Step 3: Cross multiply
    157,559.91x = 217,539.15 × 121,196.79
  4. Step 4: Simplify right side
    157,559.91x = 26,365,045,591.63
  5. Step 5: Solve for x
    x = 26,365,045,591.63/157,559.91
  6. Step 6: Final answer
    x = 167,333.46

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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.