Home / 103,905.24-155,764.98-40,710.66

Finding the Fourth Proportional to 103,905.24, 155,764.98 and 40,710.66

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Solution

The fourth proportional to 103,905.24, 155,764.98 and 40,710.66 is: 61,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,905.24 : 155,764.98 = 40,710.66 : x
  2. Step 2: Convert to fraction form
    103,905.24/155,764.98 = 40,710.66/x
  3. Step 3: Cross multiply
    103,905.24x = 155,764.98 × 40,710.66
  4. Step 4: Simplify right side
    103,905.24x = 6,341,295,140.69
  5. Step 5: Solve for x
    x = 6,341,295,140.69/103,905.24
  6. Step 6: Final answer
    x = 61,029.60

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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.