Home / 223,946.19-309,039.53-121,969.44

Finding the Fourth Proportional to 223,946.19, 309,039.53 and 121,969.44

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Solution

The fourth proportional to 223,946.19, 309,039.53 and 121,969.44 is: 168,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,946.19 : 309,039.53 = 121,969.44 : x
  2. Step 2: Convert to fraction form
    223,946.19/309,039.53 = 121,969.44/x
  3. Step 3: Cross multiply
    223,946.19x = 309,039.53 × 121,969.44
  4. Step 4: Simplify right side
    223,946.19x = 37,693,377,802.12
  5. Step 5: Solve for x
    x = 37,693,377,802.12/223,946.19
  6. Step 6: Final answer
    x = 168,314.44

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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.