Home / 118,128.22-177,140.34-43,228.90

Finding the Fourth Proportional to 118,128.22, 177,140.34 and 43,228.90

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Solution

The fourth proportional to 118,128.22, 177,140.34 and 43,228.90 is: 64,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,128.22 : 177,140.34 = 43,228.90 : x
  2. Step 2: Convert to fraction form
    118,128.22/177,140.34 = 43,228.90/x
  3. Step 3: Cross multiply
    118,128.22x = 177,140.34 × 43,228.90
  4. Step 4: Simplify right side
    118,128.22x = 7,657,582,043.83
  5. Step 5: Solve for x
    x = 7,657,582,043.83/118,128.22
  6. Step 6: Final answer
    x = 64,824.32

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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.