Home / 146,140.40-219,268.20-57,378.80

Finding the Fourth Proportional to 146,140.40, 219,268.20 and 57,378.80

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Solution

The fourth proportional to 146,140.40, 219,268.20 and 57,378.80 is: 86,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,140.40 : 219,268.20 = 57,378.80 : x
  2. Step 2: Convert to fraction form
    146,140.40/219,268.20 = 57,378.80/x
  3. Step 3: Cross multiply
    146,140.40x = 219,268.20 × 57,378.80
  4. Step 4: Simplify right side
    146,140.40x = 12,581,346,194.16
  5. Step 5: Solve for x
    x = 12,581,346,194.16/146,140.40
  6. Step 6: Final answer
    x = 86,090.82

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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.