Home / 120,460.40-180,801.60-61,338.50

Finding the Fourth Proportional to 120,460.40, 180,801.60 and 61,338.50

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Solution

The fourth proportional to 120,460.40, 180,801.60 and 61,338.50 is: 92,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,460.40 : 180,801.60 = 61,338.50 : x
  2. Step 2: Convert to fraction form
    120,460.40/180,801.60 = 61,338.50/x
  3. Step 3: Cross multiply
    120,460.40x = 180,801.60 × 61,338.50
  4. Step 4: Simplify right side
    120,460.40x = 11,090,098,941.60
  5. Step 5: Solve for x
    x = 11,090,098,941.60/120,460.40
  6. Step 6: Final answer
    x = 92,064.27

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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.