Home / 134,431.60-201,647.40-102,938.80

Finding the Fourth Proportional to 134,431.60, 201,647.40 and 102,938.80

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Solution

The fourth proportional to 134,431.60, 201,647.40 and 102,938.80 is: 154,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,431.60 : 201,647.40 = 102,938.80 : x
  2. Step 2: Convert to fraction form
    134,431.60/201,647.40 = 102,938.80/x
  3. Step 3: Cross multiply
    134,431.60x = 201,647.40 × 102,938.80
  4. Step 4: Simplify right side
    134,431.60x = 20,757,341,379.12
  5. Step 5: Solve for x
    x = 20,757,341,379.12/134,431.60
  6. Step 6: Final answer
    x = 154,408.20

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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.