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Finding the Fourth Proportional to 102,695.60, 154,043.40 and 28,823.60

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Solution

The fourth proportional to 102,695.60, 154,043.40 and 28,823.60 is: 43,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,695.60 : 154,043.40 = 28,823.60 : x
  2. Step 2: Convert to fraction form
    102,695.60/154,043.40 = 28,823.60/x
  3. Step 3: Cross multiply
    102,695.60x = 154,043.40 × 28,823.60
  4. Step 4: Simplify right side
    102,695.60x = 4,440,085,344.24
  5. Step 5: Solve for x
    x = 4,440,085,344.24/102,695.60
  6. Step 6: Final answer
    x = 43,235.40

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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.