Home / 190,421.97-262,782.53-105,539.10

Finding the Fourth Proportional to 190,421.97, 262,782.53 and 105,539.10

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Solution

The fourth proportional to 190,421.97, 262,782.53 and 105,539.10 is: 145,644.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,421.97 : 262,782.53 = 105,539.10 : x
  2. Step 2: Convert to fraction form
    190,421.97/262,782.53 = 105,539.10/x
  3. Step 3: Cross multiply
    190,421.97x = 262,782.53 × 105,539.10
  4. Step 4: Simplify right side
    190,421.97x = 27,733,831,711.92
  5. Step 5: Solve for x
    x = 27,733,831,711.92/190,421.97
  6. Step 6: Final answer
    x = 145,644.08

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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.