Home / 145,203.60-200,375.76-81,544.08

Finding the Fourth Proportional to 145,203.60, 200,375.76 and 81,544.08

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Solution

The fourth proportional to 145,203.60, 200,375.76 and 81,544.08 is: 112,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,203.60 : 200,375.76 = 81,544.08 : x
  2. Step 2: Convert to fraction form
    145,203.60/200,375.76 = 81,544.08/x
  3. Step 3: Cross multiply
    145,203.60x = 200,375.76 × 81,544.08
  4. Step 4: Simplify right side
    145,203.60x = 16,339,457,003.50
  5. Step 5: Solve for x
    x = 16,339,457,003.50/145,203.60
  6. Step 6: Final answer
    x = 112,527.91

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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.