Home / 196,308.04-270,836.08-128,364.77

Finding the Fourth Proportional to 196,308.04, 270,836.08 and 128,364.77

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Solution

The fourth proportional to 196,308.04, 270,836.08 and 128,364.77 is: 177,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,308.04 : 270,836.08 = 128,364.77 : x
  2. Step 2: Convert to fraction form
    196,308.04/270,836.08 = 128,364.77/x
  3. Step 3: Cross multiply
    196,308.04x = 270,836.08 × 128,364.77
  4. Step 4: Simplify right side
    196,308.04x = 34,765,811,116.90
  5. Step 5: Solve for x
    x = 34,765,811,116.90/196,308.04
  6. Step 6: Final answer
    x = 177,098.25

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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.