Home / 118,674.76-163,764.86-64,949.40

Finding the Fourth Proportional to 118,674.76, 163,764.86 and 64,949.40

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Solution

The fourth proportional to 118,674.76, 163,764.86 and 64,949.40 is: 89,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,674.76 : 163,764.86 = 64,949.40 : x
  2. Step 2: Convert to fraction form
    118,674.76/163,764.86 = 64,949.40/x
  3. Step 3: Cross multiply
    118,674.76x = 163,764.86 × 64,949.40
  4. Step 4: Simplify right side
    118,674.76x = 10,636,429,398.08
  5. Step 5: Solve for x
    x = 10,636,429,398.08/118,674.76
  6. Step 6: Final answer
    x = 89,626.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.