Home / 117,929.40-176,915.70-47,815.80

Finding the Fourth Proportional to 117,929.40, 176,915.70 and 47,815.80

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Solution

The fourth proportional to 117,929.40, 176,915.70 and 47,815.80 is: 71,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,929.40 : 176,915.70 = 47,815.80 : x
  2. Step 2: Convert to fraction form
    117,929.40/176,915.70 = 47,815.80/x
  3. Step 3: Cross multiply
    117,929.40x = 176,915.70 × 47,815.80
  4. Step 4: Simplify right side
    117,929.40x = 8,459,365,728.06
  5. Step 5: Solve for x
    x = 8,459,365,728.06/117,929.40
  6. Step 6: Final answer
    x = 71,732.46

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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.