Home / 136,219.30-204,378.16-69,690.76

Finding the Fourth Proportional to 136,219.30, 204,378.16 and 69,690.76

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Solution

The fourth proportional to 136,219.30, 204,378.16 and 69,690.76 is: 104,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,219.30 : 204,378.16 = 69,690.76 : x
  2. Step 2: Convert to fraction form
    136,219.30/204,378.16 = 69,690.76/x
  3. Step 3: Cross multiply
    136,219.30x = 204,378.16 × 69,690.76
  4. Step 4: Simplify right side
    136,219.30x = 14,243,269,297.80
  5. Step 5: Solve for x
    x = 14,243,269,297.80/136,219.30
  6. Step 6: Final answer
    x = 104,561.32

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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.