Home / 135,515.48-203,459.42-69,000.31

Finding the Fourth Proportional to 135,515.48, 203,459.42 and 69,000.31

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Solution

The fourth proportional to 135,515.48, 203,459.42 and 69,000.31 is: 103,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,515.48 : 203,459.42 = 69,000.31 : x
  2. Step 2: Convert to fraction form
    135,515.48/203,459.42 = 69,000.31/x
  3. Step 3: Cross multiply
    135,515.48x = 203,459.42 × 69,000.31
  4. Step 4: Simplify right side
    135,515.48x = 14,038,762,140.72
  5. Step 5: Solve for x
    x = 14,038,762,140.72/135,515.48
  6. Step 6: Final answer
    x = 103,595.27

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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.