Home / 120,457.32-180,688.91-40,496.44

Finding the Fourth Proportional to 120,457.32, 180,688.91 and 40,496.44

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Solution

The fourth proportional to 120,457.32, 180,688.91 and 40,496.44 is: 60,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,457.32 : 180,688.91 = 40,496.44 : x
  2. Step 2: Convert to fraction form
    120,457.32/180,688.91 = 40,496.44/x
  3. Step 3: Cross multiply
    120,457.32x = 180,688.91 × 40,496.44
  4. Step 4: Simplify right side
    120,457.32x = 7,317,257,602.48
  5. Step 5: Solve for x
    x = 7,317,257,602.48/120,457.32
  6. Step 6: Final answer
    x = 60,745.65

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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.