Home / 120,317.37-180,653.47-67,113.30

Finding the Fourth Proportional to 120,317.37, 180,653.47 and 67,113.30

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Solution

The fourth proportional to 120,317.37, 180,653.47 and 67,113.30 is: 100,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,317.37 : 180,653.47 = 67,113.30 : x
  2. Step 2: Convert to fraction form
    120,317.37/180,653.47 = 67,113.30/x
  3. Step 3: Cross multiply
    120,317.37x = 180,653.47 × 67,113.30
  4. Step 4: Simplify right side
    120,317.37x = 12,124,250,528.15
  5. Step 5: Solve for x
    x = 12,124,250,528.15/120,317.37
  6. Step 6: Final answer
    x = 100,768.91

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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.