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Finding the Fourth Proportional to 163,898.88, 245,653.92 and 70,206.72

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Solution

The fourth proportional to 163,898.88, 245,653.92 and 70,206.72 is: 105,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,898.88 : 245,653.92 = 70,206.72 : x
  2. Step 2: Convert to fraction form
    163,898.88/245,653.92 = 70,206.72/x
  3. Step 3: Cross multiply
    163,898.88x = 245,653.92 × 70,206.72
  4. Step 4: Simplify right side
    163,898.88x = 17,246,555,978.34
  5. Step 5: Solve for x
    x = 17,246,555,978.34/163,898.88
  6. Step 6: Final answer
    x = 105,226.81

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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.