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Finding the Fourth Proportional to 163,538.80, 245,005.80 and 93,209.20

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Solution

The fourth proportional to 163,538.80, 245,005.80 and 93,209.20 is: 139,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538.80 : 245,005.80 = 93,209.20 : x
  2. Step 2: Convert to fraction form
    163,538.80/245,005.80 = 93,209.20/x
  3. Step 3: Cross multiply
    163,538.80x = 245,005.80 × 93,209.20
  4. Step 4: Simplify right side
    163,538.80x = 22,836,794,613.36
  5. Step 5: Solve for x
    x = 22,836,794,613.36/163,538.80
  6. Step 6: Final answer
    x = 139,641.45

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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.