Home / 213,914.93-295,109.91-128,984.81

Finding the Fourth Proportional to 213,914.93, 295,109.91 and 128,984.81

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Solution

The fourth proportional to 213,914.93, 295,109.91 and 128,984.81 is: 177,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,914.93 : 295,109.91 = 128,984.81 : x
  2. Step 2: Convert to fraction form
    213,914.93/295,109.91 = 128,984.81/x
  3. Step 3: Cross multiply
    213,914.93x = 295,109.91 × 128,984.81
  4. Step 4: Simplify right side
    213,914.93x = 38,064,694,194.92
  5. Step 5: Solve for x
    x = 38,064,694,194.92/213,914.93
  6. Step 6: Final answer
    x = 177,943.14

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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.