Home / 145,036.41-200,147.11-80,501.86

Finding the Fourth Proportional to 145,036.41, 200,147.11 and 80,501.86

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Solution

The fourth proportional to 145,036.41, 200,147.11 and 80,501.86 is: 111,090.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,036.41 : 200,147.11 = 80,501.86 : x
  2. Step 2: Convert to fraction form
    145,036.41/200,147.11 = 80,501.86/x
  3. Step 3: Cross multiply
    145,036.41x = 200,147.11 × 80,501.86
  4. Step 4: Simplify right side
    145,036.41x = 16,112,214,628.62
  5. Step 5: Solve for x
    x = 16,112,214,628.62/145,036.41
  6. Step 6: Final answer
    x = 111,090.83

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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.