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Finding the Fourth Proportional to 136,031.60, 204,047.40 and 98,512.40

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Solution

The fourth proportional to 136,031.60, 204,047.40 and 98,512.40 is: 147,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,031.60 : 204,047.40 = 98,512.40 : x
  2. Step 2: Convert to fraction form
    136,031.60/204,047.40 = 98,512.40/x
  3. Step 3: Cross multiply
    136,031.60x = 204,047.40 × 98,512.40
  4. Step 4: Simplify right side
    136,031.60x = 20,101,199,087.76
  5. Step 5: Solve for x
    x = 20,101,199,087.76/136,031.60
  6. Step 6: Final answer
    x = 147,768.60

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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.