Home / 136,128.45-204,028.65-69,534.30

Finding the Fourth Proportional to 136,128.45, 204,028.65 and 69,534.30

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Solution

The fourth proportional to 136,128.45, 204,028.65 and 69,534.30 is: 104,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,128.45 : 204,028.65 = 69,534.30 : x
  2. Step 2: Convert to fraction form
    136,128.45/204,028.65 = 69,534.30/x
  3. Step 3: Cross multiply
    136,128.45x = 204,028.65 × 69,534.30
  4. Step 4: Simplify right side
    136,128.45x = 14,186,989,357.70
  5. Step 5: Solve for x
    x = 14,186,989,357.70/136,128.45
  6. Step 6: Final answer
    x = 104,217.67

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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.