Home / 190,238.10-262,528.47-105,355.10

Finding the Fourth Proportional to 190,238.10, 262,528.47 and 105,355.10

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Solution

The fourth proportional to 190,238.10, 262,528.47 and 105,355.10 is: 145,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,238.10 : 262,528.47 = 105,355.10 : x
  2. Step 2: Convert to fraction form
    190,238.10/262,528.47 = 105,355.10/x
  3. Step 3: Cross multiply
    190,238.10x = 262,528.47 × 105,355.10
  4. Step 4: Simplify right side
    190,238.10x = 27,658,711,897.05
  5. Step 5: Solve for x
    x = 27,658,711,897.05/190,238.10
  6. Step 6: Final answer
    x = 145,389.97

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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.