Home / 145,110.52-200,261.40-81,448.30

Finding the Fourth Proportional to 145,110.52, 200,261.40 and 81,448.30

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Solution

The fourth proportional to 145,110.52, 200,261.40 and 81,448.30 is: 112,403.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.52 : 200,261.40 = 81,448.30 : x
  2. Step 2: Convert to fraction form
    145,110.52/200,261.40 = 81,448.30/x
  3. Step 3: Cross multiply
    145,110.52x = 200,261.40 × 81,448.30
  4. Step 4: Simplify right side
    145,110.52x = 16,310,950,585.62
  5. Step 5: Solve for x
    x = 16,310,950,585.62/145,110.52
  6. Step 6: Final answer
    x = 112,403.64

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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.