Home / 155,341.05-214,378.38-87,379.41

Finding the Fourth Proportional to 155,341.05, 214,378.38 and 87,379.41

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Solution

The fourth proportional to 155,341.05, 214,378.38 and 87,379.41 is: 120,587.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,341.05 : 214,378.38 = 87,379.41 : x
  2. Step 2: Convert to fraction form
    155,341.05/214,378.38 = 87,379.41/x
  3. Step 3: Cross multiply
    155,341.05x = 214,378.38 × 87,379.41
  4. Step 4: Simplify right side
    155,341.05x = 18,732,256,361.16
  5. Step 5: Solve for x
    x = 18,732,256,361.16/155,341.05
  6. Step 6: Final answer
    x = 120,587.93

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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.