Home / 155,673.74-214,659.88-105,285.26

Finding the Fourth Proportional to 155,673.74, 214,659.88 and 105,285.26

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Solution

The fourth proportional to 155,673.74, 214,659.88 and 105,285.26 is: 145,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,673.74 : 214,659.88 = 105,285.26 : x
  2. Step 2: Convert to fraction form
    155,673.74/214,659.88 = 105,285.26/x
  3. Step 3: Cross multiply
    155,673.74x = 214,659.88 × 105,285.26
  4. Step 4: Simplify right side
    155,673.74x = 22,600,519,940.86
  5. Step 5: Solve for x
    x = 22,600,519,940.86/155,673.74
  6. Step 6: Final answer
    x = 145,178.76

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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.