Home / 142,828.40-197,106.36-82,401.32

Finding the Fourth Proportional to 142,828.40, 197,106.36 and 82,401.32

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Solution

The fourth proportional to 142,828.40, 197,106.36 and 82,401.32 is: 113,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,828.40 : 197,106.36 = 82,401.32 : x
  2. Step 2: Convert to fraction form
    142,828.40/197,106.36 = 82,401.32/x
  3. Step 3: Cross multiply
    142,828.40x = 197,106.36 × 82,401.32
  4. Step 4: Simplify right side
    142,828.40x = 16,241,824,244.40
  5. Step 5: Solve for x
    x = 16,241,824,244.40/142,828.40
  6. Step 6: Final answer
    x = 113,715.65

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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.