Home / 125,220.40-187,830.60-111,442.30

Finding the Fourth Proportional to 125,220.40, 187,830.60 and 111,442.30

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Solution

The fourth proportional to 125,220.40, 187,830.60 and 111,442.30 is: 167,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,220.40 : 187,830.60 = 111,442.30 : x
  2. Step 2: Convert to fraction form
    125,220.40/187,830.60 = 111,442.30/x
  3. Step 3: Cross multiply
    125,220.40x = 187,830.60 × 111,442.30
  4. Step 4: Simplify right side
    125,220.40x = 20,932,274,074.38
  5. Step 5: Solve for x
    x = 20,932,274,074.38/125,220.40
  6. Step 6: Final answer
    x = 167,163.45

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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.