Home / 103,170,885.71-142,375,817.49-56,760,143.18

Finding the Fourth Proportional to 103,170,885.71, 142,375,817.49 and 56,760,143.18

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Solution

The fourth proportional to 103,170,885.71, 142,375,817.49 and 56,760,143.18 is: 78,328,994.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,170,885.71 : 142,375,817.49 = 56,760,143.18 : x
  2. Step 2: Convert to fraction form
    103,170,885.71/142,375,817.49 = 56,760,143.18/x
  3. Step 3: Cross multiply
    103,170,885.71x = 142,375,817.49 × 56,760,143.18
  4. Step 4: Simplify right side
    103,170,885.71x = 8,081,271,786,101,949
  5. Step 5: Solve for x
    x = 8,081,271,786,101,949/103,170,885.71
  6. Step 6: Final answer
    x = 78,328,994.95

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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.