Home / 127,071.12-190,533.78-48,135

Finding the Fourth Proportional to 127,071.12, 190,533.78 and 48,135

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Solution

The fourth proportional to 127,071.12, 190,533.78 and 48,135 is: 72,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,071.12 : 190,533.78 = 48,135 : x
  2. Step 2: Convert to fraction form
    127,071.12/190,533.78 = 48,135/x
  3. Step 3: Cross multiply
    127,071.12x = 190,533.78 × 48,135
  4. Step 4: Simplify right side
    127,071.12x = 9,171,343,500.30
  5. Step 5: Solve for x
    x = 9,171,343,500.30/127,071.12
  6. Step 6: Final answer
    x = 72,174.89

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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.