Home / 103,939,915.20-155,909,872.80-74,714,596.80

Finding the Fourth Proportional to 103,939,915.20, 155,909,872.80 and 74,714,596.80

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Solution

The fourth proportional to 103,939,915.20, 155,909,872.80 and 74,714,596.80 is: 112,071,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,939,915.20 : 155,909,872.80 = 74,714,596.80 : x
  2. Step 2: Convert to fraction form
    103,939,915.20/155,909,872.80 = 74,714,596.80/x
  3. Step 3: Cross multiply
    103,939,915.20x = 155,909,872.80 × 74,714,596.80
  4. Step 4: Simplify right side
    103,939,915.20x = 11,648,743,283,391,288
  5. Step 5: Solve for x
    x = 11,648,743,283,391,288/103,939,915.20
  6. Step 6: Final answer
    x = 112,071,895.20

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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.