Home / 143,155.80-197,576.55-103,002.48

Finding the Fourth Proportional to 143,155.80, 197,576.55 and 103,002.48

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Solution

The fourth proportional to 143,155.80, 197,576.55 and 103,002.48 is: 142,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,155.80 : 197,576.55 = 103,002.48 : x
  2. Step 2: Convert to fraction form
    143,155.80/197,576.55 = 103,002.48/x
  3. Step 3: Cross multiply
    143,155.80x = 197,576.55 × 103,002.48
  4. Step 4: Simplify right side
    143,155.80x = 20,350,874,639.84
  5. Step 5: Solve for x
    x = 20,350,874,639.84/143,155.80
  6. Step 6: Final answer
    x = 142,158.93

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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.