Home / 129,511.63-193,317.59-120,013.60

Finding the Fourth Proportional to 129,511.63, 193,317.59 and 120,013.60

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Solution

The fourth proportional to 129,511.63, 193,317.59 and 120,013.60 is: 179,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,511.63 : 193,317.59 = 120,013.60 : x
  2. Step 2: Convert to fraction form
    129,511.63/193,317.59 = 120,013.60/x
  3. Step 3: Cross multiply
    129,511.63x = 193,317.59 × 120,013.60
  4. Step 4: Simplify right side
    129,511.63x = 23,200,739,423.36
  5. Step 5: Solve for x
    x = 23,200,739,423.36/129,511.63
  6. Step 6: Final answer
    x = 179,140.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.