Home / 155,847.69-214,970.09-108,083.61

Finding the Fourth Proportional to 155,847.69, 214,970.09 and 108,083.61

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Solution

The fourth proportional to 155,847.69, 214,970.09 and 108,083.61 is: 149,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847.69 : 214,970.09 = 108,083.61 : x
  2. Step 2: Convert to fraction form
    155,847.69/214,970.09 = 108,083.61/x
  3. Step 3: Cross multiply
    155,847.69x = 214,970.09 × 108,083.61
  4. Step 4: Simplify right side
    155,847.69x = 23,234,742,828.81
  5. Step 5: Solve for x
    x = 23,234,742,828.81/155,847.69
  6. Step 6: Final answer
    x = 149,086.22

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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.