Home / 157,806.20-236,126.10-143,809.40

Finding the Fourth Proportional to 157,806.20, 236,126.10 and 143,809.40

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Solution

The fourth proportional to 157,806.20, 236,126.10 and 143,809.40 is: 215,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,806.20 : 236,126.10 = 143,809.40 : x
  2. Step 2: Convert to fraction form
    157,806.20/236,126.10 = 143,809.40/x
  3. Step 3: Cross multiply
    157,806.20x = 236,126.10 × 143,809.40
  4. Step 4: Simplify right side
    157,806.20x = 33,957,152,765.34
  5. Step 5: Solve for x
    x = 33,957,152,765.34/157,806.20
  6. Step 6: Final answer
    x = 215,182.63

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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.