Home / 203,071.10-280,311.71-118,188.18

Finding the Fourth Proportional to 203,071.10, 280,311.71 and 118,188.18

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Solution

The fourth proportional to 203,071.10, 280,311.71 and 118,188.18 is: 163,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,071.10 : 280,311.71 = 118,188.18 : x
  2. Step 2: Convert to fraction form
    203,071.10/280,311.71 = 118,188.18/x
  3. Step 3: Cross multiply
    203,071.10x = 280,311.71 × 118,188.18
  4. Step 4: Simplify right side
    203,071.10x = 33,129,530,246.65
  5. Step 5: Solve for x
    x = 33,129,530,246.65/203,071.10
  6. Step 6: Final answer
    x = 163,142.52

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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.