Home / 120,259.84-180,217.18-67,558.40

Finding the Fourth Proportional to 120,259.84, 180,217.18 and 67,558.40

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Solution

The fourth proportional to 120,259.84, 180,217.18 and 67,558.40 is: 101,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,259.84 : 180,217.18 = 67,558.40 : x
  2. Step 2: Convert to fraction form
    120,259.84/180,217.18 = 67,558.40/x
  3. Step 3: Cross multiply
    120,259.84x = 180,217.18 × 67,558.40
  4. Step 4: Simplify right side
    120,259.84x = 12,175,184,333.31
  5. Step 5: Solve for x
    x = 12,175,184,333.31/120,259.84
  6. Step 6: Final answer
    x = 101,240.65

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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.