Home / 127,128.76-190,619.29-48,199.93

Finding the Fourth Proportional to 127,128.76, 190,619.29 and 48,199.93

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Solution

The fourth proportional to 127,128.76, 190,619.29 and 48,199.93 is: 72,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,128.76 : 190,619.29 = 48,199.93 : x
  2. Step 2: Convert to fraction form
    127,128.76/190,619.29 = 48,199.93/x
  3. Step 3: Cross multiply
    127,128.76x = 190,619.29 × 48,199.93
  4. Step 4: Simplify right side
    127,128.76x = 9,187,836,018.35
  5. Step 5: Solve for x
    x = 9,187,836,018.35/127,128.76
  6. Step 6: Final answer
    x = 72,271.89

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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.