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Finding the Fourth Proportional to 98,369.60, 147,573.60 and 42,209.60

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Solution

The fourth proportional to 98,369.60, 147,573.60 and 42,209.60 is: 63,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,369.60 : 147,573.60 = 42,209.60 : x
  2. Step 2: Convert to fraction form
    98,369.60/147,573.60 = 42,209.60/x
  3. Step 3: Cross multiply
    98,369.60x = 147,573.60 × 42,209.60
  4. Step 4: Simplify right side
    98,369.60x = 6,229,022,626.56
  5. Step 5: Solve for x
    x = 6,229,022,626.56/98,369.60
  6. Step 6: Final answer
    x = 63,322.64

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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.