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Finding the Fourth Proportional to 163,530.64, 245,291.08 and 45,209.08

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Solution

The fourth proportional to 163,530.64, 245,291.08 and 45,209.08 is: 67,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,530.64 : 245,291.08 = 45,209.08 : x
  2. Step 2: Convert to fraction form
    163,530.64/245,291.08 = 45,209.08/x
  3. Step 3: Cross multiply
    163,530.64x = 245,291.08 × 45,209.08
  4. Step 4: Simplify right side
    163,530.64x = 11,089,384,059.01
  5. Step 5: Solve for x
    x = 11,089,384,059.01/163,530.64
  6. Step 6: Final answer
    x = 67,812.27

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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.