Home / 103,422,171.70-155,133,257.55-60,340,021.30

Finding the Fourth Proportional to 103,422,171.70, 155,133,257.55 and 60,340,021.30

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Solution

The fourth proportional to 103,422,171.70, 155,133,257.55 and 60,340,021.30 is: 90,510,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,422,171.70 : 155,133,257.55 = 60,340,021.30 : x
  2. Step 2: Convert to fraction form
    103,422,171.70/155,133,257.55 = 60,340,021.30/x
  3. Step 3: Cross multiply
    103,422,171.70x = 155,133,257.55 × 60,340,021.30
  4. Step 4: Simplify right side
    103,422,171.70x = 9,360,744,064,905,386
  5. Step 5: Solve for x
    x = 9,360,744,064,905,386/103,422,171.70
  6. Step 6: Final answer
    x = 90,510,031.95

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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.