Home / 131,389.74-197,051.81-42,668.64

Finding the Fourth Proportional to 131,389.74, 197,051.81 and 42,668.64

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Solution

The fourth proportional to 131,389.74, 197,051.81 and 42,668.64 is: 63,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,389.74 : 197,051.81 = 42,668.64 : x
  2. Step 2: Convert to fraction form
    131,389.74/197,051.81 = 42,668.64/x
  3. Step 3: Cross multiply
    131,389.74x = 197,051.81 × 42,668.64
  4. Step 4: Simplify right side
    131,389.74x = 8,407,932,528.90
  5. Step 5: Solve for x
    x = 8,407,932,528.90/131,389.74
  6. Step 6: Final answer
    x = 63,992.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.