Home / 260,555.16-390,861.06-83,020.44

Finding the Fourth Proportional to 260,555.16, 390,861.06 and 83,020.44

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Solution

The fourth proportional to 260,555.16, 390,861.06 and 83,020.44 is: 124,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,555.16 : 390,861.06 = 83,020.44 : x
  2. Step 2: Convert to fraction form
    260,555.16/390,861.06 = 83,020.44/x
  3. Step 3: Cross multiply
    260,555.16x = 390,861.06 × 83,020.44
  4. Step 4: Simplify right side
    260,555.16x = 32,449,457,180.07
  5. Step 5: Solve for x
    x = 32,449,457,180.07/260,555.16
  6. Step 6: Final answer
    x = 124,539.68

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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.