Home / 157,559.55-236,142.22-78,695.79

Finding the Fourth Proportional to 157,559.55, 236,142.22 and 78,695.79

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Solution

The fourth proportional to 157,559.55, 236,142.22 and 78,695.79 is: 117,945.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,559.55 : 236,142.22 = 78,695.79 : x
  2. Step 2: Convert to fraction form
    157,559.55/236,142.22 = 78,695.79/x
  3. Step 3: Cross multiply
    157,559.55x = 236,142.22 × 78,695.79
  4. Step 4: Simplify right side
    157,559.55x = 18,583,398,555.25
  5. Step 5: Solve for x
    x = 18,583,398,555.25/157,559.55
  6. Step 6: Final answer
    x = 117,945.24

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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.