Home / 123,200.60-185,112.32-118,218.36

Finding the Fourth Proportional to 123,200.60, 185,112.32 and 118,218.36

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Solution

The fourth proportional to 123,200.60, 185,112.32 and 118,218.36 is: 177,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,200.60 : 185,112.32 = 118,218.36 : x
  2. Step 2: Convert to fraction form
    123,200.60/185,112.32 = 118,218.36/x
  3. Step 3: Cross multiply
    123,200.60x = 185,112.32 × 118,218.36
  4. Step 4: Simplify right side
    123,200.60x = 21,883,674,886.20
  5. Step 5: Solve for x
    x = 21,883,674,886.20/123,200.60
  6. Step 6: Final answer
    x = 177,626.37

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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.