Home / 151,133.75-208,564.56-83,149.28

Finding the Fourth Proportional to 151,133.75, 208,564.56 and 83,149.28

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Solution

The fourth proportional to 151,133.75, 208,564.56 and 83,149.28 is: 114,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,133.75 : 208,564.56 = 83,149.28 : x
  2. Step 2: Convert to fraction form
    151,133.75/208,564.56 = 83,149.28/x
  3. Step 3: Cross multiply
    151,133.75x = 208,564.56 × 83,149.28
  4. Step 4: Simplify right side
    151,133.75x = 17,341,991,954.69
  5. Step 5: Solve for x
    x = 17,341,991,954.69/151,133.75
  6. Step 6: Final answer
    x = 114,746.00

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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.