Home / 190,420.68-285,633.60-72,060.24

Finding the Fourth Proportional to 190,420.68, 285,633.60 and 72,060.24

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Solution

The fourth proportional to 190,420.68, 285,633.60 and 72,060.24 is: 108,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,420.68 : 285,633.60 = 72,060.24 : x
  2. Step 2: Convert to fraction form
    190,420.68/285,633.60 = 72,060.24/x
  3. Step 3: Cross multiply
    190,420.68x = 285,633.60 × 72,060.24
  4. Step 4: Simplify right side
    190,420.68x = 20,582,825,768.06
  5. Step 5: Solve for x
    x = 20,582,825,768.06/190,420.68
  6. Step 6: Final answer
    x = 108,091.34

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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.