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Finding the Fourth Proportional to 178,104.08, 245,288.04 and 137,668.88

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Solution

The fourth proportional to 178,104.08, 245,288.04 and 137,668.88 is: 189,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,104.08 : 245,288.04 = 137,668.88 : x
  2. Step 2: Convert to fraction form
    178,104.08/245,288.04 = 137,668.88/x
  3. Step 3: Cross multiply
    178,104.08x = 245,288.04 × 137,668.88
  4. Step 4: Simplify right side
    178,104.08x = 33,768,529,744.20
  5. Step 5: Solve for x
    x = 33,768,529,744.20/178,104.08
  6. Step 6: Final answer
    x = 189,599.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.