Home / 121,069.25-181,483.37-57,815.43

Finding the Fourth Proportional to 121,069.25, 181,483.37 and 57,815.43

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Solution

The fourth proportional to 121,069.25, 181,483.37 and 57,815.43 is: 86,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,069.25 : 181,483.37 = 57,815.43 : x
  2. Step 2: Convert to fraction form
    121,069.25/181,483.37 = 57,815.43/x
  3. Step 3: Cross multiply
    121,069.25x = 181,483.37 × 57,815.43
  4. Step 4: Simplify right side
    121,069.25x = 10,492,539,074.40
  5. Step 5: Solve for x
    x = 10,492,539,074.40/121,069.25
  6. Step 6: Final answer
    x = 86,665.60

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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.