Home / 190,220.78-262,495.18-109,643.42

Finding the Fourth Proportional to 190,220.78, 262,495.18 and 109,643.42

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Solution

The fourth proportional to 190,220.78, 262,495.18 and 109,643.42 is: 151,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,220.78 : 262,495.18 = 109,643.42 : x
  2. Step 2: Convert to fraction form
    190,220.78/262,495.18 = 109,643.42/x
  3. Step 3: Cross multiply
    190,220.78x = 262,495.18 × 109,643.42
  4. Step 4: Simplify right side
    190,220.78x = 28,780,869,268.72
  5. Step 5: Solve for x
    x = 28,780,869,268.72/190,220.78
  6. Step 6: Final answer
    x = 151,302.45

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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.