Home / 76,161.41-105,106.62-42,173.66

Finding the Fourth Proportional to 76,161.41, 105,106.62 and 42,173.66

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Solution

The fourth proportional to 76,161.41, 105,106.62 and 42,173.66 is: 58,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,161.41 : 105,106.62 = 42,173.66 : x
  2. Step 2: Convert to fraction form
    76,161.41/105,106.62 = 42,173.66/x
  3. Step 3: Cross multiply
    76,161.41x = 105,106.62 × 42,173.66
  4. Step 4: Simplify right side
    76,161.41x = 4,432,730,855.63
  5. Step 5: Solve for x
    x = 4,432,730,855.63/76,161.41
  6. Step 6: Final answer
    x = 58,201.80

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1.5x scale

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.