Home / 151,983.72-209,763.05-102,903.08

Finding the Fourth Proportional to 151,983.72, 209,763.05 and 102,903.08

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Solution

The fourth proportional to 151,983.72, 209,763.05 and 102,903.08 is: 142,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,983.72 : 209,763.05 = 102,903.08 : x
  2. Step 2: Convert to fraction form
    151,983.72/209,763.05 = 102,903.08/x
  3. Step 3: Cross multiply
    151,983.72x = 209,763.05 × 102,903.08
  4. Step 4: Simplify right side
    151,983.72x = 21,585,262,351.86
  5. Step 5: Solve for x
    x = 21,585,262,351.86/151,983.72
  6. Step 6: Final answer
    x = 142,023.52

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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.