Home / 146,985.61-220,479.63-47,146

Finding the Fourth Proportional to 146,985.61, 220,479.63 and 47,146

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Solution

The fourth proportional to 146,985.61, 220,479.63 and 47,146 is: 70,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,985.61 : 220,479.63 = 47,146 : x
  2. Step 2: Convert to fraction form
    146,985.61/220,479.63 = 47,146/x
  3. Step 3: Cross multiply
    146,985.61x = 220,479.63 × 47,146
  4. Step 4: Simplify right side
    146,985.61x = 10,394,732,635.98
  5. Step 5: Solve for x
    x = 10,394,732,635.98/146,985.61
  6. Step 6: Final answer
    x = 70,719.39

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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.