Home / 104,419.60-156,629.40-30,547.60

Finding the Fourth Proportional to 104,419.60, 156,629.40 and 30,547.60

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Solution

The fourth proportional to 104,419.60, 156,629.40 and 30,547.60 is: 45,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.60 : 156,629.40 = 30,547.60 : x
  2. Step 2: Convert to fraction form
    104,419.60/156,629.40 = 30,547.60/x
  3. Step 3: Cross multiply
    104,419.60x = 156,629.40 × 30,547.60
  4. Step 4: Simplify right side
    104,419.60x = 4,784,652,259.44
  5. Step 5: Solve for x
    x = 4,784,652,259.44/104,419.60
  6. Step 6: Final answer
    x = 45,821.40

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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.