Home / 145,323.45-200,549.79-80,794.64

Finding the Fourth Proportional to 145,323.45, 200,549.79 and 80,794.64

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Solution

The fourth proportional to 145,323.45, 200,549.79 and 80,794.64 is: 111,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,323.45 : 200,549.79 = 80,794.64 : x
  2. Step 2: Convert to fraction form
    145,323.45/200,549.79 = 80,794.64/x
  3. Step 3: Cross multiply
    145,323.45x = 200,549.79 × 80,794.64
  4. Step 4: Simplify right side
    145,323.45x = 16,203,348,586.50
  5. Step 5: Solve for x
    x = 16,203,348,586.50/145,323.45
  6. Step 6: Final answer
    x = 111,498.51

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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.