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Finding the Fourth Proportional to 171,051.60, 256,577.40 and 112,069.20

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Solution

The fourth proportional to 171,051.60, 256,577.40 and 112,069.20 is: 168,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,051.60 : 256,577.40 = 112,069.20 : x
  2. Step 2: Convert to fraction form
    171,051.60/256,577.40 = 112,069.20/x
  3. Step 3: Cross multiply
    171,051.60x = 256,577.40 × 112,069.20
  4. Step 4: Simplify right side
    171,051.60x = 28,754,423,956.08
  5. Step 5: Solve for x
    x = 28,754,423,956.08/171,051.60
  6. Step 6: Final answer
    x = 168,103.80

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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.