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Finding the Fourth Proportional to 102,753.60, 154,130.40 and 28,881.60

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Solution

The fourth proportional to 102,753.60, 154,130.40 and 28,881.60 is: 43,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,753.60 : 154,130.40 = 28,881.60 : x
  2. Step 2: Convert to fraction form
    102,753.60/154,130.40 = 28,881.60/x
  3. Step 3: Cross multiply
    102,753.60x = 154,130.40 × 28,881.60
  4. Step 4: Simplify right side
    102,753.60x = 4,451,532,560.64
  5. Step 5: Solve for x
    x = 4,451,532,560.64/102,753.60
  6. Step 6: Final answer
    x = 43,322.40

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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.