Home / 116,139.20-174,266.40-66,257.60

Finding the Fourth Proportional to 116,139.20, 174,266.40 and 66,257.60

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Solution

The fourth proportional to 116,139.20, 174,266.40 and 66,257.60 is: 99,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,139.20 : 174,266.40 = 66,257.60 : x
  2. Step 2: Convert to fraction form
    116,139.20/174,266.40 = 66,257.60/x
  3. Step 3: Cross multiply
    116,139.20x = 174,266.40 × 66,257.60
  4. Step 4: Simplify right side
    116,139.20x = 11,546,473,424.64
  5. Step 5: Solve for x
    x = 11,546,473,424.64/116,139.20
  6. Step 6: Final answer
    x = 99,419.26

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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.