Home / 142,807.86-197,029.81-82,370.40

Finding the Fourth Proportional to 142,807.86, 197,029.81 and 82,370.40

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Solution

The fourth proportional to 142,807.86, 197,029.81 and 82,370.40 is: 113,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,807.86 : 197,029.81 = 82,370.40 : x
  2. Step 2: Convert to fraction form
    142,807.86/197,029.81 = 82,370.40/x
  3. Step 3: Cross multiply
    142,807.86x = 197,029.81 × 82,370.40
  4. Step 4: Simplify right side
    142,807.86x = 16,229,424,261.62
  5. Step 5: Solve for x
    x = 16,229,424,261.62/142,807.86
  6. Step 6: Final answer
    x = 113,645.18

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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.