Home / 127,132.45-190,692.48-47,185.98

Finding the Fourth Proportional to 127,132.45, 190,692.48 and 47,185.98

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Solution

The fourth proportional to 127,132.45, 190,692.48 and 47,185.98 is: 70,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,132.45 : 190,692.48 = 47,185.98 : x
  2. Step 2: Convert to fraction form
    127,132.45/190,692.48 = 47,185.98/x
  3. Step 3: Cross multiply
    127,132.45x = 190,692.48 × 47,185.98
  4. Step 4: Simplify right side
    127,132.45x = 8,998,010,743.86
  5. Step 5: Solve for x
    x = 8,998,010,743.86/127,132.45
  6. Step 6: Final answer
    x = 70,776.66

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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.