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Finding the Fourth Proportional to 136,615.60, 204,923.40 and 98,999.20

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Solution

The fourth proportional to 136,615.60, 204,923.40 and 98,999.20 is: 148,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,615.60 : 204,923.40 = 98,999.20 : x
  2. Step 2: Convert to fraction form
    136,615.60/204,923.40 = 98,999.20/x
  3. Step 3: Cross multiply
    136,615.60x = 204,923.40 × 98,999.20
  4. Step 4: Simplify right side
    136,615.60x = 20,287,252,661.28
  5. Step 5: Solve for x
    x = 20,287,252,661.28/136,615.60
  6. Step 6: Final answer
    x = 148,498.80

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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.