Home / 130,824.96-180,544-74,241.60

Finding the Fourth Proportional to 130,824.96, 180,544 and 74,241.60

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Solution

The fourth proportional to 130,824.96, 180,544 and 74,241.60 is: 102,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824.96 : 180,544 = 74,241.60 : x
  2. Step 2: Convert to fraction form
    130,824.96/180,544 = 74,241.60/x
  3. Step 3: Cross multiply
    130,824.96x = 180,544 × 74,241.60
  4. Step 4: Simplify right side
    130,824.96x = 13,403,875,430.40
  5. Step 5: Solve for x
    x = 13,403,875,430.40/130,824.96
  6. Step 6: Final answer
    x = 102,456.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.