Home / 130,890.36-196,059.70-59,872.80

Finding the Fourth Proportional to 130,890.36, 196,059.70 and 59,872.80

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Solution

The fourth proportional to 130,890.36, 196,059.70 and 59,872.80 is: 89,683.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,890.36 : 196,059.70 = 59,872.80 : x
  2. Step 2: Convert to fraction form
    130,890.36/196,059.70 = 59,872.80/x
  3. Step 3: Cross multiply
    130,890.36x = 196,059.70 × 59,872.80
  4. Step 4: Simplify right side
    130,890.36x = 11,738,643,206.16
  5. Step 5: Solve for x
    x = 11,738,643,206.16/130,890.36
  6. Step 6: Final answer
    x = 89,683.02

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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.