Home / 151,698.52-209,105.58-103,869.16

Finding the Fourth Proportional to 151,698.52, 209,105.58 and 103,869.16

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Solution

The fourth proportional to 151,698.52, 209,105.58 and 103,869.16 is: 143,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,698.52 : 209,105.58 = 103,869.16 : x
  2. Step 2: Convert to fraction form
    151,698.52/209,105.58 = 103,869.16/x
  3. Step 3: Cross multiply
    151,698.52x = 209,105.58 × 103,869.16
  4. Step 4: Simplify right side
    151,698.52x = 21,719,620,945.91
  5. Step 5: Solve for x
    x = 21,719,620,945.91/151,698.52
  6. Step 6: Final answer
    x = 143,176.22

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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.