Home / 131,014.40-196,521.60-128,827.40

Finding the Fourth Proportional to 131,014.40, 196,521.60 and 128,827.40

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Solution

The fourth proportional to 131,014.40, 196,521.60 and 128,827.40 is: 193,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,014.40 : 196,521.60 = 128,827.40 : x
  2. Step 2: Convert to fraction form
    131,014.40/196,521.60 = 128,827.40/x
  3. Step 3: Cross multiply
    131,014.40x = 196,521.60 × 128,827.40
  4. Step 4: Simplify right side
    131,014.40x = 25,317,366,771.84
  5. Step 5: Solve for x
    x = 25,317,366,771.84/131,014.40
  6. Step 6: Final answer
    x = 193,241.10

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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.