Home / 143,097.44-197,464.57-79,430.22

Finding the Fourth Proportional to 143,097.44, 197,464.57 and 79,430.22

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Solution

The fourth proportional to 143,097.44, 197,464.57 and 79,430.22 is: 109,608.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,097.44 : 197,464.57 = 79,430.22 : x
  2. Step 2: Convert to fraction form
    143,097.44/197,464.57 = 79,430.22/x
  3. Step 3: Cross multiply
    143,097.44x = 197,464.57 × 79,430.22
  4. Step 4: Simplify right side
    143,097.44x = 15,684,654,038.73
  5. Step 5: Solve for x
    x = 15,684,654,038.73/143,097.44
  6. Step 6: Final answer
    x = 109,608.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.