Home / 205,340.00-307,260.65-121,140.50

Finding the Fourth Proportional to 205,340.00, 307,260.65 and 121,140.50

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Solution

The fourth proportional to 205,340.00, 307,260.65 and 121,140.50 is: 181,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,340.00 : 307,260.65 = 121,140.50 : x
  2. Step 2: Convert to fraction form
    205,340.00/307,260.65 = 121,140.50/x
  3. Step 3: Cross multiply
    205,340.00x = 307,260.65 × 121,140.50
  4. Step 4: Simplify right side
    205,340.00x = 37,221,709,842.33
  5. Step 5: Solve for x
    x = 37,221,709,842.33/205,340.00
  6. Step 6: Final answer
    x = 181,268.67

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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.