Home / 145,110.06-200,236.50-81,454.86

Finding the Fourth Proportional to 145,110.06, 200,236.50 and 81,454.86

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Solution

The fourth proportional to 145,110.06, 200,236.50 and 81,454.86 is: 112,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.06 : 200,236.50 = 81,454.86 : x
  2. Step 2: Convert to fraction form
    145,110.06/200,236.50 = 81,454.86/x
  3. Step 3: Cross multiply
    145,110.06x = 200,236.50 × 81,454.86
  4. Step 4: Simplify right side
    145,110.06x = 16,310,236,074.39
  5. Step 5: Solve for x
    x = 16,310,236,074.39/145,110.06
  6. Step 6: Final answer
    x = 112,399.07

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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.