Home / 130,015.10-195,022.65-103,771.10

Finding the Fourth Proportional to 130,015.10, 195,022.65 and 103,771.10

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Solution

The fourth proportional to 130,015.10, 195,022.65 and 103,771.10 is: 155,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.10 : 195,022.65 = 103,771.10 : x
  2. Step 2: Convert to fraction form
    130,015.10/195,022.65 = 103,771.10/x
  3. Step 3: Cross multiply
    130,015.10x = 195,022.65 × 103,771.10
  4. Step 4: Simplify right side
    130,015.10x = 20,237,714,915.42
  5. Step 5: Solve for x
    x = 20,237,714,915.42/130,015.10
  6. Step 6: Final answer
    x = 155,656.65

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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.