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Finding the Fourth Proportional to 123,477.60, 185,216.40 and 118,293.60

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Solution

The fourth proportional to 123,477.60, 185,216.40 and 118,293.60 is: 177,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,477.60 : 185,216.40 = 118,293.60 : x
  2. Step 2: Convert to fraction form
    123,477.60/185,216.40 = 118,293.60/x
  3. Step 3: Cross multiply
    123,477.60x = 185,216.40 × 118,293.60
  4. Step 4: Simplify right side
    123,477.60x = 21,909,914,735.04
  5. Step 5: Solve for x
    x = 21,909,914,735.04/123,477.60
  6. Step 6: Final answer
    x = 177,440.40

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1.5x scale

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.