Home / 127,311.40-190,988.70-38,564.20

Finding the Fourth Proportional to 127,311.40, 190,988.70 and 38,564.20

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Solution

The fourth proportional to 127,311.40, 190,988.70 and 38,564.20 is: 57,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,311.40 : 190,988.70 = 38,564.20 : x
  2. Step 2: Convert to fraction form
    127,311.40/190,988.70 = 38,564.20/x
  3. Step 3: Cross multiply
    127,311.40x = 190,988.70 × 38,564.20
  4. Step 4: Simplify right side
    127,311.40x = 7,365,326,424.54
  5. Step 5: Solve for x
    x = 7,365,326,424.54/127,311.40
  6. Step 6: Final answer
    x = 57,852.84

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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.