Home / 222,559.23-307,121.72-121,955.07

Finding the Fourth Proportional to 222,559.23, 307,121.72 and 121,955.07

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Solution

The fourth proportional to 222,559.23, 307,121.72 and 121,955.07 is: 168,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,559.23 : 307,121.72 = 121,955.07 : x
  2. Step 2: Convert to fraction form
    222,559.23/307,121.72 = 121,955.07/x
  3. Step 3: Cross multiply
    222,559.23x = 307,121.72 × 121,955.07
  4. Step 4: Simplify right side
    222,559.23x = 37,455,050,251.35
  5. Step 5: Solve for x
    x = 37,455,050,251.35/222,559.23
  6. Step 6: Final answer
    x = 168,292.50

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1.5x scale

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.