Home / 115,430.50-173,200.55-79,946.43

Finding the Fourth Proportional to 115,430.50, 173,200.55 and 79,946.43

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Solution

The fourth proportional to 115,430.50, 173,200.55 and 79,946.43 is: 119,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,430.50 : 173,200.55 = 79,946.43 : x
  2. Step 2: Convert to fraction form
    115,430.50/173,200.55 = 79,946.43/x
  3. Step 3: Cross multiply
    115,430.50x = 173,200.55 × 79,946.43
  4. Step 4: Simplify right side
    115,430.50x = 13,846,765,646.54
  5. Step 5: Solve for x
    x = 13,846,765,646.54/115,430.50
  6. Step 6: Final answer
    x = 119,957.60

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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.