Home / 151,386.25-208,904.73-83,389.89

Finding the Fourth Proportional to 151,386.25, 208,904.73 and 83,389.89

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Solution

The fourth proportional to 151,386.25, 208,904.73 and 83,389.89 is: 115,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,386.25 : 208,904.73 = 83,389.89 : x
  2. Step 2: Convert to fraction form
    151,386.25/208,904.73 = 83,389.89/x
  3. Step 3: Cross multiply
    151,386.25x = 208,904.73 × 83,389.89
  4. Step 4: Simplify right side
    151,386.25x = 17,420,542,455.18
  5. Step 5: Solve for x
    x = 17,420,542,455.18/151,386.25
  6. Step 6: Final answer
    x = 115,073.48

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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.