Home / 236,378.55-354,616.43-78,720.15

Finding the Fourth Proportional to 236,378.55, 354,616.43 and 78,720.15

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Solution

The fourth proportional to 236,378.55, 354,616.43 and 78,720.15 is: 118,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,378.55 : 354,616.43 = 78,720.15 : x
  2. Step 2: Convert to fraction form
    236,378.55/354,616.43 = 78,720.15/x
  3. Step 3: Cross multiply
    236,378.55x = 354,616.43 × 78,720.15
  4. Step 4: Simplify right side
    236,378.55x = 27,915,458,168.46
  5. Step 5: Solve for x
    x = 27,915,458,168.46/236,378.55
  6. Step 6: Final answer
    x = 118,096.41

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1.5x scale

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.