Home / 157,829.60-236,890.20-79,000.40

Finding the Fourth Proportional to 157,829.60, 236,890.20 and 79,000.40

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Solution

The fourth proportional to 157,829.60, 236,890.20 and 79,000.40 is: 118,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,829.60 : 236,890.20 = 79,000.40 : x
  2. Step 2: Convert to fraction form
    157,829.60/236,890.20 = 79,000.40/x
  3. Step 3: Cross multiply
    157,829.60x = 236,890.20 × 79,000.40
  4. Step 4: Simplify right side
    157,829.60x = 18,714,420,556.08
  5. Step 5: Solve for x
    x = 18,714,420,556.08/157,829.60
  6. Step 6: Final answer
    x = 118,573.58

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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.