Home / 190,196.60-262,479.51-105,313.68

Finding the Fourth Proportional to 190,196.60, 262,479.51 and 105,313.68

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Solution

The fourth proportional to 190,196.60, 262,479.51 and 105,313.68 is: 145,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,196.60 : 262,479.51 = 105,313.68 : x
  2. Step 2: Convert to fraction form
    190,196.60/262,479.51 = 105,313.68/x
  3. Step 3: Cross multiply
    190,196.60x = 262,479.51 × 105,313.68
  4. Step 4: Simplify right side
    190,196.60x = 27,642,683,122.70
  5. Step 5: Solve for x
    x = 27,642,683,122.70/190,196.60
  6. Step 6: Final answer
    x = 145,337.42

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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.