Home / 145,445.76-200,698.83-81,782.19

Finding the Fourth Proportional to 145,445.76, 200,698.83 and 81,782.19

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Solution

The fourth proportional to 145,445.76, 200,698.83 and 81,782.19 is: 112,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,445.76 : 200,698.83 = 81,782.19 : x
  2. Step 2: Convert to fraction form
    145,445.76/200,698.83 = 81,782.19/x
  3. Step 3: Cross multiply
    145,445.76x = 200,698.83 × 81,782.19
  4. Step 4: Simplify right side
    145,445.76x = 16,413,589,847.84
  5. Step 5: Solve for x
    x = 16,413,589,847.84/145,445.76
  6. Step 6: Final answer
    x = 112,850.25

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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.