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Finding the Fourth Proportional to 163,491.84, 245,255.04 and 69,972.48

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Solution

The fourth proportional to 163,491.84, 245,255.04 and 69,972.48 is: 104,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,491.84 : 245,255.04 = 69,972.48 : x
  2. Step 2: Convert to fraction form
    163,491.84/245,255.04 = 69,972.48/x
  3. Step 3: Cross multiply
    163,491.84x = 245,255.04 × 69,972.48
  4. Step 4: Simplify right side
    163,491.84x = 17,161,103,381.30
  5. Step 5: Solve for x
    x = 17,161,103,381.30/163,491.84
  6. Step 6: Final answer
    x = 104,966.12

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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.