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Finding the Fourth Proportional to 109,800.90, 164,701.35 and 65,404.80

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Solution

The fourth proportional to 109,800.90, 164,701.35 and 65,404.80 is: 98,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,800.90 : 164,701.35 = 65,404.80 : x
  2. Step 2: Convert to fraction form
    109,800.90/164,701.35 = 65,404.80/x
  3. Step 3: Cross multiply
    109,800.90x = 164,701.35 × 65,404.80
  4. Step 4: Simplify right side
    109,800.90x = 10,772,258,856.48
  5. Step 5: Solve for x
    x = 10,772,258,856.48/109,800.90
  6. Step 6: Final answer
    x = 98,107.20

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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.