Home / 118,639.84-163,758-68,374.24

Finding the Fourth Proportional to 118,639.84, 163,758 and 68,374.24

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Solution

The fourth proportional to 118,639.84, 163,758 and 68,374.24 is: 94,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,639.84 : 163,758 = 68,374.24 : x
  2. Step 2: Convert to fraction form
    118,639.84/163,758 = 68,374.24/x
  3. Step 3: Cross multiply
    118,639.84x = 163,758 × 68,374.24
  4. Step 4: Simplify right side
    118,639.84x = 11,196,828,793.92
  5. Step 5: Solve for x
    x = 11,196,828,793.92/118,639.84
  6. Step 6: Final answer
    x = 94,376.63

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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.