Home / 134,091.20-201,266.40-81,603.20

Finding the Fourth Proportional to 134,091.20, 201,266.40 and 81,603.20

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Solution

The fourth proportional to 134,091.20, 201,266.40 and 81,603.20 is: 122,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,091.20 : 201,266.40 = 81,603.20 : x
  2. Step 2: Convert to fraction form
    134,091.20/201,266.40 = 81,603.20/x
  3. Step 3: Cross multiply
    134,091.20x = 201,266.40 × 81,603.20
  4. Step 4: Simplify right side
    134,091.20x = 16,423,982,292.48
  5. Step 5: Solve for x
    x = 16,423,982,292.48/134,091.20
  6. Step 6: Final answer
    x = 122,483.67

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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.