Home / 118,636.05-163,721.85-67,656.45

Finding the Fourth Proportional to 118,636.05, 163,721.85 and 67,656.45

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Solution

The fourth proportional to 118,636.05, 163,721.85 and 67,656.45 is: 93,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,636.05 : 163,721.85 = 67,656.45 : x
  2. Step 2: Convert to fraction form
    118,636.05/163,721.85 = 67,656.45/x
  3. Step 3: Cross multiply
    118,636.05x = 163,721.85 × 67,656.45
  4. Step 4: Simplify right side
    118,636.05x = 11,076,839,158.43
  5. Step 5: Solve for x
    x = 11,076,839,158.43/118,636.05
  6. Step 6: Final answer
    x = 93,368.24

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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.