Home / 148,188.61-222,283.26-85,418.98

Finding the Fourth Proportional to 148,188.61, 222,283.26 and 85,418.98

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Solution

The fourth proportional to 148,188.61, 222,283.26 and 85,418.98 is: 128,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,188.61 : 222,283.26 = 85,418.98 : x
  2. Step 2: Convert to fraction form
    148,188.61/222,283.26 = 85,418.98/x
  3. Step 3: Cross multiply
    148,188.61x = 222,283.26 × 85,418.98
  4. Step 4: Simplify right side
    148,188.61x = 18,987,209,649.98
  5. Step 5: Solve for x
    x = 18,987,209,649.98/148,188.61
  6. Step 6: Final answer
    x = 128,128.67

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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.