Home / 120,205.26-180,364.59-53,639.46

Finding the Fourth Proportional to 120,205.26, 180,364.59 and 53,639.46

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Solution

The fourth proportional to 120,205.26, 180,364.59 and 53,639.46 is: 80,484.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,205.26 : 180,364.59 = 53,639.46 : x
  2. Step 2: Convert to fraction form
    120,205.26/180,364.59 = 53,639.46/x
  3. Step 3: Cross multiply
    120,205.26x = 180,364.59 × 53,639.46
  4. Step 4: Simplify right side
    120,205.26x = 9,674,659,210.72
  5. Step 5: Solve for x
    x = 9,674,659,210.72/120,205.26
  6. Step 6: Final answer
    x = 80,484.49

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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.