Home / 74,124.62-102,307.42-68,146.82

Finding the Fourth Proportional to 74,124.62, 102,307.42 and 68,146.82

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Solution

The fourth proportional to 74,124.62, 102,307.42 and 68,146.82 is: 94,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.62 : 102,307.42 = 68,146.82 : x
  2. Step 2: Convert to fraction form
    74,124.62/102,307.42 = 68,146.82/x
  3. Step 3: Cross multiply
    74,124.62x = 102,307.42 × 68,146.82
  4. Step 4: Simplify right side
    74,124.62x = 6,971,925,335.40
  5. Step 5: Solve for x
    x = 6,971,925,335.40/74,124.62
  6. Step 6: Final answer
    x = 94,056.81

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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.