Home / 190,147.50-262,403.55-105,270.03

Finding the Fourth Proportional to 190,147.50, 262,403.55 and 105,270.03

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Solution

The fourth proportional to 190,147.50, 262,403.55 and 105,270.03 is: 145,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,147.50 : 262,403.55 = 105,270.03 : x
  2. Step 2: Convert to fraction form
    190,147.50/262,403.55 = 105,270.03/x
  3. Step 3: Cross multiply
    190,147.50x = 262,403.55 × 105,270.03
  4. Step 4: Simplify right side
    190,147.50x = 27,623,229,580.61
  5. Step 5: Solve for x
    x = 27,623,229,580.61/190,147.50
  6. Step 6: Final answer
    x = 145,272.64

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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.