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Finding the Fourth Proportional to 163,803.12, 245,549 and 64,027.28

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Solution

The fourth proportional to 163,803.12, 245,549 and 64,027.28 is: 95,980.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,803.12 : 245,549 = 64,027.28 : x
  2. Step 2: Convert to fraction form
    163,803.12/245,549 = 64,027.28/x
  3. Step 3: Cross multiply
    163,803.12x = 245,549 × 64,027.28
  4. Step 4: Simplify right side
    163,803.12x = 15,721,834,576.72
  5. Step 5: Solve for x
    x = 15,721,834,576.72/163,803.12
  6. Step 6: Final answer
    x = 95,980.07

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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.