Home / 151,053.28-208,455.42-83,077.72

Finding the Fourth Proportional to 151,053.28, 208,455.42 and 83,077.72

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Solution

The fourth proportional to 151,053.28, 208,455.42 and 83,077.72 is: 114,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,053.28 : 208,455.42 = 83,077.72 : x
  2. Step 2: Convert to fraction form
    151,053.28/208,455.42 = 83,077.72/x
  3. Step 3: Cross multiply
    151,053.28x = 208,455.42 × 83,077.72
  4. Step 4: Simplify right side
    151,053.28x = 17,318,001,015.24
  5. Step 5: Solve for x
    x = 17,318,001,015.24/151,053.28
  6. Step 6: Final answer
    x = 114,648.30

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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.