Home / 445,869.06-668,939.67-142,255.14

Finding the Fourth Proportional to 445,869.06, 668,939.67 and 142,255.14

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Solution

The fourth proportional to 445,869.06, 668,939.67 and 142,255.14 is: 213,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,869.06 : 668,939.67 = 142,255.14 : x
  2. Step 2: Convert to fraction form
    445,869.06/668,939.67 = 142,255.14/x
  3. Step 3: Cross multiply
    445,869.06x = 668,939.67 × 142,255.14
  4. Step 4: Simplify right side
    445,869.06x = 95,160,106,407.40
  5. Step 5: Solve for x
    x = 95,160,106,407.40/445,869.06
  6. Step 6: Final answer
    x = 213,426.13

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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.