Home / 145,942.95-218,914.43-67,123.47

Finding the Fourth Proportional to 145,942.95, 218,914.43 and 67,123.47

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Solution

The fourth proportional to 145,942.95, 218,914.43 and 67,123.47 is: 100,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,942.95 : 218,914.43 = 67,123.47 : x
  2. Step 2: Convert to fraction form
    145,942.95/218,914.43 = 67,123.47/x
  3. Step 3: Cross multiply
    145,942.95x = 218,914.43 × 67,123.47
  4. Step 4: Simplify right side
    145,942.95x = 14,694,295,839.05
  5. Step 5: Solve for x
    x = 14,694,295,839.05/145,942.95
  6. Step 6: Final answer
    x = 100,685.21

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1.5x scale

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.