Home / 133,171.90-183,770.19-72,741.67

Finding the Fourth Proportional to 133,171.90, 183,770.19 and 72,741.67

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Solution

The fourth proportional to 133,171.90, 183,770.19 and 72,741.67 is: 100,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,171.90 : 183,770.19 = 72,741.67 : x
  2. Step 2: Convert to fraction form
    133,171.90/183,770.19 = 72,741.67/x
  3. Step 3: Cross multiply
    133,171.90x = 183,770.19 × 72,741.67
  4. Step 4: Simplify right side
    133,171.90x = 13,367,750,778.83
  5. Step 5: Solve for x
    x = 13,367,750,778.83/133,171.90
  6. Step 6: Final answer
    x = 100,379.67

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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.