Home / 100,779.13-151,177.07-30,659.05

Finding the Fourth Proportional to 100,779.13, 151,177.07 and 30,659.05

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Solution

The fourth proportional to 100,779.13, 151,177.07 and 30,659.05 is: 45,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,779.13 : 151,177.07 = 30,659.05 : x
  2. Step 2: Convert to fraction form
    100,779.13/151,177.07 = 30,659.05/x
  3. Step 3: Cross multiply
    100,779.13x = 151,177.07 × 30,659.05
  4. Step 4: Simplify right side
    100,779.13x = 4,634,945,347.98
  5. Step 5: Solve for x
    x = 4,634,945,347.98/100,779.13
  6. Step 6: Final answer
    x = 45,991.12

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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.