Home / 157,795.60-236,839.20-78,966.40

Finding the Fourth Proportional to 157,795.60, 236,839.20 and 78,966.40

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Solution

The fourth proportional to 157,795.60, 236,839.20 and 78,966.40 is: 118,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,795.60 : 236,839.20 = 78,966.40 : x
  2. Step 2: Convert to fraction form
    157,795.60/236,839.20 = 78,966.40/x
  3. Step 3: Cross multiply
    157,795.60x = 236,839.20 × 78,966.40
  4. Step 4: Simplify right side
    157,795.60x = 18,702,339,002.88
  5. Step 5: Solve for x
    x = 18,702,339,002.88/157,795.60
  6. Step 6: Final answer
    x = 118,522.56

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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.