Home / 203,071.50-280,199.77-131,441.58

Finding the Fourth Proportional to 203,071.50, 280,199.77 and 131,441.58

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Solution

The fourth proportional to 203,071.50, 280,199.77 and 131,441.58 is: 181,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,071.50 : 280,199.77 = 131,441.58 : x
  2. Step 2: Convert to fraction form
    203,071.50/280,199.77 = 131,441.58/x
  3. Step 3: Cross multiply
    203,071.50x = 280,199.77 × 131,441.58
  4. Step 4: Simplify right side
    203,071.50x = 36,829,900,484.44
  5. Step 5: Solve for x
    x = 36,829,900,484.44/203,071.50
  6. Step 6: Final answer
    x = 181,364.20

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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.