Home / 130,946.49-196,668.86-81,373.03

Finding the Fourth Proportional to 130,946.49, 196,668.86 and 81,373.03

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Solution

The fourth proportional to 130,946.49, 196,668.86 and 81,373.03 is: 122,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.49 : 196,668.86 = 81,373.03 : x
  2. Step 2: Convert to fraction form
    130,946.49/196,668.86 = 81,373.03/x
  3. Step 3: Cross multiply
    130,946.49x = 196,668.86 × 81,373.03
  4. Step 4: Simplify right side
    130,946.49x = 16,003,540,146.31
  5. Step 5: Solve for x
    x = 16,003,540,146.31/130,946.49
  6. Step 6: Final answer
    x = 122,214.35

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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.