Home / 104,505.32-144,258.70-72,692.68

Finding the Fourth Proportional to 104,505.32, 144,258.70 and 72,692.68

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Solution

The fourth proportional to 104,505.32, 144,258.70 and 72,692.68 is: 100,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,505.32 : 144,258.70 = 72,692.68 : x
  2. Step 2: Convert to fraction form
    104,505.32/144,258.70 = 72,692.68/x
  3. Step 3: Cross multiply
    104,505.32x = 144,258.70 × 72,692.68
  4. Step 4: Simplify right side
    104,505.32x = 10,486,551,516.32
  5. Step 5: Solve for x
    x = 10,486,551,516.32/104,505.32
  6. Step 6: Final answer
    x = 100,344.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.