Home / 187,074.20-280,611.30-112,424.60

Finding the Fourth Proportional to 187,074.20, 280,611.30 and 112,424.60

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Solution

The fourth proportional to 187,074.20, 280,611.30 and 112,424.60 is: 168,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,074.20 : 280,611.30 = 112,424.60 : x
  2. Step 2: Convert to fraction form
    187,074.20/280,611.30 = 112,424.60/x
  3. Step 3: Cross multiply
    187,074.20x = 280,611.30 × 112,424.60
  4. Step 4: Simplify right side
    187,074.20x = 31,547,613,157.98
  5. Step 5: Solve for x
    x = 31,547,613,157.98/187,074.20
  6. Step 6: Final answer
    x = 168,636.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.