Home / 79,343.48-118,730.84-68,706.45

Finding the Fourth Proportional to 79,343.48, 118,730.84 and 68,706.45

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Solution

The fourth proportional to 79,343.48, 118,730.84 and 68,706.45 is: 102,813.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,343.48 : 118,730.84 = 68,706.45 : x
  2. Step 2: Convert to fraction form
    79,343.48/118,730.84 = 68,706.45/x
  3. Step 3: Cross multiply
    79,343.48x = 118,730.84 × 68,706.45
  4. Step 4: Simplify right side
    79,343.48x = 8,157,574,178.39
  5. Step 5: Solve for x
    x = 8,157,574,178.39/79,343.48
  6. Step 6: Final answer
    x = 102,813.42

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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.