Home / 190,410.24-285,515.52-65,721.60

Finding the Fourth Proportional to 190,410.24, 285,515.52 and 65,721.60

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Solution

The fourth proportional to 190,410.24, 285,515.52 and 65,721.60 is: 98,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,410.24 : 285,515.52 = 65,721.60 : x
  2. Step 2: Convert to fraction form
    190,410.24/285,515.52 = 65,721.60/x
  3. Step 3: Cross multiply
    190,410.24x = 285,515.52 × 65,721.60
  4. Step 4: Simplify right side
    190,410.24x = 18,764,536,799.23
  5. Step 5: Solve for x
    x = 18,764,536,799.23/190,410.24
  6. Step 6: Final answer
    x = 98,547.94

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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.