Home / 130,021.10-194,703.60-103,777.10

Finding the Fourth Proportional to 130,021.10, 194,703.60 and 103,777.10

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Solution

The fourth proportional to 130,021.10, 194,703.60 and 103,777.10 is: 155,403.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,021.10 : 194,703.60 = 103,777.10 : x
  2. Step 2: Convert to fraction form
    130,021.10/194,703.60 = 103,777.10/x
  3. Step 3: Cross multiply
    130,021.10x = 194,703.60 × 103,777.10
  4. Step 4: Simplify right side
    130,021.10x = 20,205,774,967.56
  5. Step 5: Solve for x
    x = 20,205,774,967.56/130,021.10
  6. Step 6: Final answer
    x = 155,403.81

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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.