Home / 157,640.38-217,543.73-101,051.75

Finding the Fourth Proportional to 157,640.38, 217,543.73 and 101,051.75

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Solution

The fourth proportional to 157,640.38, 217,543.73 and 101,051.75 is: 139,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,640.38 : 217,543.73 = 101,051.75 : x
  2. Step 2: Convert to fraction form
    157,640.38/217,543.73 = 101,051.75/x
  3. Step 3: Cross multiply
    157,640.38x = 217,543.73 × 101,051.75
  4. Step 4: Simplify right side
    157,640.38x = 21,983,174,656.63
  5. Step 5: Solve for x
    x = 21,983,174,656.63/157,640.38
  6. Step 6: Final answer
    x = 139,451.42

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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.