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Finding the Fourth Proportional to 92,004.60, 128,981.40 and 92,004.60

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Solution

The fourth proportional to 92,004.60, 128,981.40 and 92,004.60 is: 128,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,004.60 : 128,981.40 = 92,004.60 : x
  2. Step 2: Convert to fraction form
    92,004.60/128,981.40 = 92,004.60/x
  3. Step 3: Cross multiply
    92,004.60x = 128,981.40 × 92,004.60
  4. Step 4: Simplify right side
    92,004.60x = 11,866,882,114.44
  5. Step 5: Solve for x
    x = 11,866,882,114.44/92,004.60
  6. Step 6: Final answer
    x = 128,981.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.