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Finding the Fourth Proportional to 163,990.63, 245,985.95 and 45,665.02

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Solution

The fourth proportional to 163,990.63, 245,985.95 and 45,665.02 is: 68,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,990.63 : 245,985.95 = 45,665.02 : x
  2. Step 2: Convert to fraction form
    163,990.63/245,985.95 = 45,665.02/x
  3. Step 3: Cross multiply
    163,990.63x = 245,985.95 × 45,665.02
  4. Step 4: Simplify right side
    163,990.63x = 11,232,953,326.47
  5. Step 5: Solve for x
    x = 11,232,953,326.47/163,990.63
  6. Step 6: Final answer
    x = 68,497.53

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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.