Home / 163,721.84-245,582.77-45,393.18

Finding the Fourth Proportional to 163,721.84, 245,582.77 and 45,393.18

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Solution

The fourth proportional to 163,721.84, 245,582.77 and 45,393.18 is: 68,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,721.84 : 245,582.77 = 45,393.18 : x
  2. Step 2: Convert to fraction form
    163,721.84/245,582.77 = 45,393.18/x
  3. Step 3: Cross multiply
    163,721.84x = 245,582.77 × 45,393.18
  4. Step 4: Simplify right side
    163,721.84x = 11,147,783,861.19
  5. Step 5: Solve for x
    x = 11,147,783,861.19/163,721.84
  6. Step 6: Final answer
    x = 68,089.78

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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.