Home / 190,081.53-262,209.04-122,109.20

Finding the Fourth Proportional to 190,081.53, 262,209.04 and 122,109.20

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Solution

The fourth proportional to 190,081.53, 262,209.04 and 122,109.20 is: 168,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,081.53 : 262,209.04 = 122,109.20 : x
  2. Step 2: Convert to fraction form
    190,081.53/262,209.04 = 122,109.20/x
  3. Step 3: Cross multiply
    190,081.53x = 262,209.04 × 122,109.20
  4. Step 4: Simplify right side
    190,081.53x = 32,018,136,107.17
  5. Step 5: Solve for x
    x = 32,018,136,107.17/190,081.53
  6. Step 6: Final answer
    x = 168,444.23

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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.