Home / 190,036.32-262,239.20-105,149.12

Finding the Fourth Proportional to 190,036.32, 262,239.20 and 105,149.12

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Solution

The fourth proportional to 190,036.32, 262,239.20 and 105,149.12 is: 145,099.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,036.32 : 262,239.20 = 105,149.12 : x
  2. Step 2: Convert to fraction form
    190,036.32/262,239.20 = 105,149.12/x
  3. Step 3: Cross multiply
    190,036.32x = 262,239.20 × 105,149.12
  4. Step 4: Simplify right side
    190,036.32x = 27,574,221,109.50
  5. Step 5: Solve for x
    x = 27,574,221,109.50/190,036.32
  6. Step 6: Final answer
    x = 145,099.74

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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.