Home / 142,928.94-197,210.39-82,486.74

Finding the Fourth Proportional to 142,928.94, 197,210.39 and 82,486.74

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Solution

The fourth proportional to 142,928.94, 197,210.39 and 82,486.74 is: 113,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.94 : 197,210.39 = 82,486.74 : x
  2. Step 2: Convert to fraction form
    142,928.94/197,210.39 = 82,486.74/x
  3. Step 3: Cross multiply
    142,928.94x = 197,210.39 × 82,486.74
  4. Step 4: Simplify right side
    142,928.94x = 16,267,242,165.23
  5. Step 5: Solve for x
    x = 16,267,242,165.23/142,928.94
  6. Step 6: Final answer
    x = 113,813.49

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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.