Home / 190,476.15-285,754.19-72,144.87

Finding the Fourth Proportional to 190,476.15, 285,754.19 and 72,144.87

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Solution

The fourth proportional to 190,476.15, 285,754.19 and 72,144.87 is: 108,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,476.15 : 285,754.19 = 72,144.87 : x
  2. Step 2: Convert to fraction form
    190,476.15/285,754.19 = 72,144.87/x
  3. Step 3: Cross multiply
    190,476.15x = 285,754.19 × 72,144.87
  4. Step 4: Simplify right side
    190,476.15x = 20,615,698,528.78
  5. Step 5: Solve for x
    x = 20,615,698,528.78/190,476.15
  6. Step 6: Final answer
    x = 108,232.44

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1.5x scale

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.