Home / 130,001.05-195,063.50-90,081.60

Finding the Fourth Proportional to 130,001.05, 195,063.50 and 90,081.60

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Solution

The fourth proportional to 130,001.05, 195,063.50 and 90,081.60 is: 135,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,001.05 : 195,063.50 = 90,081.60 : x
  2. Step 2: Convert to fraction form
    130,001.05/195,063.50 = 90,081.60/x
  3. Step 3: Cross multiply
    130,001.05x = 195,063.50 × 90,081.60
  4. Step 4: Simplify right side
    130,001.05x = 17,571,632,181.60
  5. Step 5: Solve for x
    x = 17,571,632,181.60/130,001.05
  6. Step 6: Final answer
    x = 135,165.31

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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.