Home / 130,620.12-180,257.73-73,272.15

Finding the Fourth Proportional to 130,620.12, 180,257.73 and 73,272.15

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Solution

The fourth proportional to 130,620.12, 180,257.73 and 73,272.15 is: 101,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,620.12 : 180,257.73 = 73,272.15 : x
  2. Step 2: Convert to fraction form
    130,620.12/180,257.73 = 73,272.15/x
  3. Step 3: Cross multiply
    130,620.12x = 180,257.73 × 73,272.15
  4. Step 4: Simplify right side
    130,620.12x = 13,207,871,431.22
  5. Step 5: Solve for x
    x = 13,207,871,431.22/130,620.12
  6. Step 6: Final answer
    x = 101,116.67

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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.