Home / 130,915.96-196,374.78-55,973

Finding the Fourth Proportional to 130,915.96, 196,374.78 and 55,973

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Solution

The fourth proportional to 130,915.96, 196,374.78 and 55,973 is: 83,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,915.96 : 196,374.78 = 55,973 : x
  2. Step 2: Convert to fraction form
    130,915.96/196,374.78 = 55,973/x
  3. Step 3: Cross multiply
    130,915.96x = 196,374.78 × 55,973
  4. Step 4: Simplify right side
    130,915.96x = 10,991,685,560.94
  5. Step 5: Solve for x
    x = 10,991,685,560.94/130,915.96
  6. Step 6: Final answer
    x = 83,959.86

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1.5x scale

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.