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Finding the Fourth Proportional to 163,630.80, 245,316.60 and 89,758.80

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Solution

The fourth proportional to 163,630.80, 245,316.60 and 89,758.80 is: 134,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,630.80 : 245,316.60 = 89,758.80 : x
  2. Step 2: Convert to fraction form
    163,630.80/245,316.60 = 89,758.80/x
  3. Step 3: Cross multiply
    163,630.80x = 245,316.60 × 89,758.80
  4. Step 4: Simplify right side
    163,630.80x = 22,019,323,636.08
  5. Step 5: Solve for x
    x = 22,019,323,636.08/163,630.80
  6. Step 6: Final answer
    x = 134,567.11

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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.