Home / 157,816.20-236,141.10-143,819.40

Finding the Fourth Proportional to 157,816.20, 236,141.10 and 143,819.40

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Solution

The fourth proportional to 157,816.20, 236,141.10 and 143,819.40 is: 215,197.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,816.20 : 236,141.10 = 143,819.40 : x
  2. Step 2: Convert to fraction form
    157,816.20/236,141.10 = 143,819.40/x
  3. Step 3: Cross multiply
    157,816.20x = 236,141.10 × 143,819.40
  4. Step 4: Simplify right side
    157,816.20x = 33,961,671,317.34
  5. Step 5: Solve for x
    x = 33,961,671,317.34/157,816.20
  6. Step 6: Final answer
    x = 215,197.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.