Home / 247,189.20-370,782.71-105,012.66

Finding the Fourth Proportional to 247,189.20, 370,782.71 and 105,012.66

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Solution

The fourth proportional to 247,189.20, 370,782.71 and 105,012.66 is: 157,518.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,189.20 : 370,782.71 = 105,012.66 : x
  2. Step 2: Convert to fraction form
    247,189.20/370,782.71 = 105,012.66/x
  3. Step 3: Cross multiply
    247,189.20x = 370,782.71 × 105,012.66
  4. Step 4: Simplify right side
    247,189.20x = 38,936,878,134.05
  5. Step 5: Solve for x
    x = 38,936,878,134.05/247,189.20
  6. Step 6: Final answer
    x = 157,518.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.