Home / 120,271.63-180,403.71-57,137.18

Finding the Fourth Proportional to 120,271.63, 180,403.71 and 57,137.18

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Solution

The fourth proportional to 120,271.63, 180,403.71 and 57,137.18 is: 85,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271.63 : 180,403.71 = 57,137.18 : x
  2. Step 2: Convert to fraction form
    120,271.63/180,403.71 = 57,137.18/x
  3. Step 3: Cross multiply
    120,271.63x = 180,403.71 × 57,137.18
  4. Step 4: Simplify right side
    120,271.63x = 10,307,759,250.94
  5. Step 5: Solve for x
    x = 10,307,759,250.94/120,271.63
  6. Step 6: Final answer
    x = 85,704.00

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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.