Home / 120,657.21-180,006.11-114,125.37

Finding the Fourth Proportional to 120,657.21, 180,006.11 and 114,125.37

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Solution

The fourth proportional to 120,657.21, 180,006.11 and 114,125.37 is: 170,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,657.21 : 180,006.11 = 114,125.37 : x
  2. Step 2: Convert to fraction form
    120,657.21/180,006.11 = 114,125.37/x
  3. Step 3: Cross multiply
    120,657.21x = 180,006.11 × 114,125.37
  4. Step 4: Simplify right side
    120,657.21x = 20,543,264,191.32
  5. Step 5: Solve for x
    x = 20,543,264,191.32/120,657.21
  6. Step 6: Final answer
    x = 170,261.39

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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.