Home / 190,204.86-262,479.50-105,320.10

Finding the Fourth Proportional to 190,204.86, 262,479.50 and 105,320.10

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Solution

The fourth proportional to 190,204.86, 262,479.50 and 105,320.10 is: 145,339.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,204.86 : 262,479.50 = 105,320.10 : x
  2. Step 2: Convert to fraction form
    190,204.86/262,479.50 = 105,320.10/x
  3. Step 3: Cross multiply
    190,204.86x = 262,479.50 × 105,320.10
  4. Step 4: Simplify right side
    190,204.86x = 27,644,368,040.60
  5. Step 5: Solve for x
    x = 27,644,368,040.60/190,204.86
  6. Step 6: Final answer
    x = 145,339.96

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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.