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Finding the Fourth Proportional to 146,720.40, 220,080.60 and 102,483.60

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Solution

The fourth proportional to 146,720.40, 220,080.60 and 102,483.60 is: 153,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,720.40 : 220,080.60 = 102,483.60 : x
  2. Step 2: Convert to fraction form
    146,720.40/220,080.60 = 102,483.60/x
  3. Step 3: Cross multiply
    146,720.40x = 220,080.60 × 102,483.60
  4. Step 4: Simplify right side
    146,720.40x = 22,554,652,178.16
  5. Step 5: Solve for x
    x = 22,554,652,178.16/146,720.40
  6. Step 6: Final answer
    x = 153,725.40

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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.