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Finding the Fourth Proportional to 163,435, 245,166.59 and 45,106.34

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Solution

The fourth proportional to 163,435, 245,166.59 and 45,106.34 is: 67,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,435 : 245,166.59 = 45,106.34 : x
  2. Step 2: Convert to fraction form
    163,435/245,166.59 = 45,106.34/x
  3. Step 3: Cross multiply
    163,435x = 245,166.59 × 45,106.34
  4. Step 4: Simplify right side
    163,435x = 11,058,567,565.18
  5. Step 5: Solve for x
    x = 11,058,567,565.18/163,435
  6. Step 6: Final answer
    x = 67,663.40

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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.