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Finding the Fourth Proportional to 163,840.80, 245,631.60 and 89,968.80

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Solution

The fourth proportional to 163,840.80, 245,631.60 and 89,968.80 is: 134,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,840.80 : 245,631.60 = 89,968.80 : x
  2. Step 2: Convert to fraction form
    163,840.80/245,631.60 = 89,968.80/x
  3. Step 3: Cross multiply
    163,840.80x = 245,631.60 × 89,968.80
  4. Step 4: Simplify right side
    163,840.80x = 22,099,180,294.08
  5. Step 5: Solve for x
    x = 22,099,180,294.08/163,840.80
  6. Step 6: Final answer
    x = 134,882.03

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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.