Home / 134,091.81-201,220.77-77,958.34

Finding the Fourth Proportional to 134,091.81, 201,220.77 and 77,958.34

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Solution

The fourth proportional to 134,091.81, 201,220.77 and 77,958.34 is: 116,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,091.81 : 201,220.77 = 77,958.34 : x
  2. Step 2: Convert to fraction form
    134,091.81/201,220.77 = 77,958.34/x
  3. Step 3: Cross multiply
    134,091.81x = 201,220.77 × 77,958.34
  4. Step 4: Simplify right side
    134,091.81x = 15,686,837,202.72
  5. Step 5: Solve for x
    x = 15,686,837,202.72/134,091.81
  6. Step 6: Final answer
    x = 116,985.80

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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.