Home / 120,420.44-166,172.88-66,702.32

Finding the Fourth Proportional to 120,420.44, 166,172.88 and 66,702.32

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Solution

The fourth proportional to 120,420.44, 166,172.88 and 66,702.32 is: 92,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,420.44 : 166,172.88 = 66,702.32 : x
  2. Step 2: Convert to fraction form
    120,420.44/166,172.88 = 66,702.32/x
  3. Step 3: Cross multiply
    120,420.44x = 166,172.88 × 66,702.32
  4. Step 4: Simplify right side
    120,420.44x = 11,084,116,617.08
  5. Step 5: Solve for x
    x = 11,084,116,617.08/120,420.44
  6. Step 6: Final answer
    x = 92,045.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.