Home / 120,079.26-180,091.35-45,207.18

Finding the Fourth Proportional to 120,079.26, 180,091.35 and 45,207.18

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Solution

The fourth proportional to 120,079.26, 180,091.35 and 45,207.18 is: 67,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,079.26 : 180,091.35 = 45,207.18 : x
  2. Step 2: Convert to fraction form
    120,079.26/180,091.35 = 45,207.18/x
  3. Step 3: Cross multiply
    120,079.26x = 180,091.35 × 45,207.18
  4. Step 4: Simplify right side
    120,079.26x = 8,141,422,075.89
  5. Step 5: Solve for x
    x = 8,141,422,075.89/120,079.26
  6. Step 6: Final answer
    x = 67,800.40

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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.