Home / 142,826.81-197,094.20-82,416.87

Finding the Fourth Proportional to 142,826.81, 197,094.20 and 82,416.87

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Solution

The fourth proportional to 142,826.81, 197,094.20 and 82,416.87 is: 113,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,826.81 : 197,094.20 = 82,416.87 : x
  2. Step 2: Convert to fraction form
    142,826.81/197,094.20 = 82,416.87/x
  3. Step 3: Cross multiply
    142,826.81x = 197,094.20 × 82,416.87
  4. Step 4: Simplify right side
    142,826.81x = 16,243,886,647.07
  5. Step 5: Solve for x
    x = 16,243,886,647.07/142,826.81
  6. Step 6: Final answer
    x = 113,731.36

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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.