Home / 109,784.64-164,897.40-65,497.92

Finding the Fourth Proportional to 109,784.64, 164,897.40 and 65,497.92

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Solution

The fourth proportional to 109,784.64, 164,897.40 and 65,497.92 is: 98,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,784.64 : 164,897.40 = 65,497.92 : x
  2. Step 2: Convert to fraction form
    109,784.64/164,897.40 = 65,497.92/x
  3. Step 3: Cross multiply
    109,784.64x = 164,897.40 × 65,497.92
  4. Step 4: Simplify right side
    109,784.64x = 10,800,436,713.41
  5. Step 5: Solve for x
    x = 10,800,436,713.41/109,784.64
  6. Step 6: Final answer
    x = 98,378.40

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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.