Home / 120,190.32-180,230.40-64,015.74

Finding the Fourth Proportional to 120,190.32, 180,230.40 and 64,015.74

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Solution

The fourth proportional to 120,190.32, 180,230.40 and 64,015.74 is: 95,994.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,190.32 : 180,230.40 = 64,015.74 : x
  2. Step 2: Convert to fraction form
    120,190.32/180,230.40 = 64,015.74/x
  3. Step 3: Cross multiply
    120,190.32x = 180,230.40 × 64,015.74
  4. Step 4: Simplify right side
    120,190.32x = 11,537,582,426.50
  5. Step 5: Solve for x
    x = 11,537,582,426.50/120,190.32
  6. Step 6: Final answer
    x = 95,994.27

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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.