Home / 253,085.16-349,239.96-139,899

Finding the Fourth Proportional to 253,085.16, 349,239.96 and 139,899

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Solution

The fourth proportional to 253,085.16, 349,239.96 and 139,899 is: 193,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,085.16 : 349,239.96 = 139,899 : x
  2. Step 2: Convert to fraction form
    253,085.16/349,239.96 = 139,899/x
  3. Step 3: Cross multiply
    253,085.16x = 349,239.96 × 139,899
  4. Step 4: Simplify right side
    253,085.16x = 48,858,321,164.04
  5. Step 5: Solve for x
    x = 48,858,321,164.04/253,085.16
  6. Step 6: Final answer
    x = 193,050.91

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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.