Home / 151,021.02-208,403.67-83,037.51

Finding the Fourth Proportional to 151,021.02, 208,403.67 and 83,037.51

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Solution

The fourth proportional to 151,021.02, 208,403.67 and 83,037.51 is: 114,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,021.02 : 208,403.67 = 83,037.51 : x
  2. Step 2: Convert to fraction form
    151,021.02/208,403.67 = 83,037.51/x
  3. Step 3: Cross multiply
    151,021.02x = 208,403.67 × 83,037.51
  4. Step 4: Simplify right side
    151,021.02x = 17,305,321,831.66
  5. Step 5: Solve for x
    x = 17,305,321,831.66/151,021.02
  6. Step 6: Final answer
    x = 114,588.83

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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.