Home / 223,651.02-308,639.75-121,677.20

Finding the Fourth Proportional to 223,651.02, 308,639.75 and 121,677.20

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Solution

The fourth proportional to 223,651.02, 308,639.75 and 121,677.20 is: 167,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,651.02 : 308,639.75 = 121,677.20 : x
  2. Step 2: Convert to fraction form
    223,651.02/308,639.75 = 121,677.20/x
  3. Step 3: Cross multiply
    223,651.02x = 308,639.75 × 121,677.20
  4. Step 4: Simplify right side
    223,651.02x = 37,554,422,015.05
  5. Step 5: Solve for x
    x = 37,554,422,015.05/223,651.02
  6. Step 6: Final answer
    x = 167,915.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.