Home / 121,054.40-181,581.60-68,566.40

Finding the Fourth Proportional to 121,054.40, 181,581.60 and 68,566.40

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Solution

The fourth proportional to 121,054.40, 181,581.60 and 68,566.40 is: 102,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,054.40 : 181,581.60 = 68,566.40 : x
  2. Step 2: Convert to fraction form
    121,054.40/181,581.60 = 68,566.40/x
  3. Step 3: Cross multiply
    121,054.40x = 181,581.60 × 68,566.40
  4. Step 4: Simplify right side
    121,054.40x = 12,450,396,618.24
  5. Step 5: Solve for x
    x = 12,450,396,618.24/121,054.40
  6. Step 6: Final answer
    x = 102,849.60

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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.