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Finding the Fourth Proportional to 163,371.52, 245,071 and 45,042.80

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Solution

The fourth proportional to 163,371.52, 245,071 and 45,042.80 is: 67,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,371.52 : 245,071 = 45,042.80 : x
  2. Step 2: Convert to fraction form
    163,371.52/245,071 = 45,042.80/x
  3. Step 3: Cross multiply
    163,371.52x = 245,071 × 45,042.80
  4. Step 4: Simplify right side
    163,371.52x = 11,038,684,038.80
  5. Step 5: Solve for x
    x = 11,038,684,038.80/163,371.52
  6. Step 6: Final answer
    x = 67,567.98

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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.