Home / 183,719.60-275,287.80-121,317.20

Finding the Fourth Proportional to 183,719.60, 275,287.80 and 121,317.20

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Solution

The fourth proportional to 183,719.60, 275,287.80 and 121,317.20 is: 181,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,719.60 : 275,287.80 = 121,317.20 : x
  2. Step 2: Convert to fraction form
    183,719.60/275,287.80 = 121,317.20/x
  3. Step 3: Cross multiply
    183,719.60x = 275,287.80 × 121,317.20
  4. Step 4: Simplify right side
    183,719.60x = 33,397,145,090.16
  5. Step 5: Solve for x
    x = 33,397,145,090.16/183,719.60
  6. Step 6: Final answer
    x = 181,783.25

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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.