Home / 145,379.22-218,066.07-79,240.26

Finding the Fourth Proportional to 145,379.22, 218,066.07 and 79,240.26

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Solution

The fourth proportional to 145,379.22, 218,066.07 and 79,240.26 is: 118,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,379.22 : 218,066.07 = 79,240.26 : x
  2. Step 2: Convert to fraction form
    145,379.22/218,066.07 = 79,240.26/x
  3. Step 3: Cross multiply
    145,379.22x = 218,066.07 × 79,240.26
  4. Step 4: Simplify right side
    145,379.22x = 17,279,612,083.98
  5. Step 5: Solve for x
    x = 17,279,612,083.98/145,379.22
  6. Step 6: Final answer
    x = 118,858.89

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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.