Home / 163,931.20-245,896.80-143,195.20

Finding the Fourth Proportional to 163,931.20, 245,896.80 and 143,195.20

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Solution

The fourth proportional to 163,931.20, 245,896.80 and 143,195.20 is: 214,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,931.20 : 245,896.80 = 143,195.20 : x
  2. Step 2: Convert to fraction form
    163,931.20/245,896.80 = 143,195.20/x
  3. Step 3: Cross multiply
    163,931.20x = 245,896.80 × 143,195.20
  4. Step 4: Simplify right side
    163,931.20x = 35,211,241,455.36
  5. Step 5: Solve for x
    x = 35,211,241,455.36/163,931.20
  6. Step 6: Final answer
    x = 214,792.80

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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.