Home / 143,317.68-215,015.40-49,830.72

Finding the Fourth Proportional to 143,317.68, 215,015.40 and 49,830.72

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Solution

The fourth proportional to 143,317.68, 215,015.40 and 49,830.72 is: 74,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,317.68 : 215,015.40 = 49,830.72 : x
  2. Step 2: Convert to fraction form
    143,317.68/215,015.40 = 49,830.72/x
  3. Step 3: Cross multiply
    143,317.68x = 215,015.40 × 49,830.72
  4. Step 4: Simplify right side
    143,317.68x = 10,714,372,193.09
  5. Step 5: Solve for x
    x = 10,714,372,193.09/143,317.68
  6. Step 6: Final answer
    x = 74,759.60

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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.