Home / 140,189.89-193,459.55-79,759.24

Finding the Fourth Proportional to 140,189.89, 193,459.55 and 79,759.24

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Solution

The fourth proportional to 140,189.89, 193,459.55 and 79,759.24 is: 110,066.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.89 : 193,459.55 = 79,759.24 : x
  2. Step 2: Convert to fraction form
    140,189.89/193,459.55 = 79,759.24/x
  3. Step 3: Cross multiply
    140,189.89x = 193,459.55 × 79,759.24
  4. Step 4: Simplify right side
    140,189.89x = 15,430,186,678.74
  5. Step 5: Solve for x
    x = 15,430,186,678.74/140,189.89
  6. Step 6: Final answer
    x = 110,066.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.