Home / 121,435.40-182,153.10-109,625.60

Finding the Fourth Proportional to 121,435.40, 182,153.10 and 109,625.60

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Solution

The fourth proportional to 121,435.40, 182,153.10 and 109,625.60 is: 164,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,435.40 : 182,153.10 = 109,625.60 : x
  2. Step 2: Convert to fraction form
    121,435.40/182,153.10 = 109,625.60/x
  3. Step 3: Cross multiply
    121,435.40x = 182,153.10 × 109,625.60
  4. Step 4: Simplify right side
    121,435.40x = 19,968,642,879.36
  5. Step 5: Solve for x
    x = 19,968,642,879.36/121,435.40
  6. Step 6: Final answer
    x = 164,438.40

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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.