Home / 127,225.40-190,765.20-38,465.60

Finding the Fourth Proportional to 127,225.40, 190,765.20 and 38,465.60

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Solution

The fourth proportional to 127,225.40, 190,765.20 and 38,465.60 is: 57,676.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,225.40 : 190,765.20 = 38,465.60 : x
  2. Step 2: Convert to fraction form
    127,225.40/190,765.20 = 38,465.60/x
  3. Step 3: Cross multiply
    127,225.40x = 190,765.20 × 38,465.60
  4. Step 4: Simplify right side
    127,225.40x = 7,337,897,877.12
  5. Step 5: Solve for x
    x = 7,337,897,877.12/127,225.40
  6. Step 6: Final answer
    x = 57,676.36

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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.