Home / 155,124.82-214,090.68-87,141.93

Finding the Fourth Proportional to 155,124.82, 214,090.68 and 87,141.93

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Solution

The fourth proportional to 155,124.82, 214,090.68 and 87,141.93 is: 120,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,124.82 : 214,090.68 = 87,141.93 : x
  2. Step 2: Convert to fraction form
    155,124.82/214,090.68 = 87,141.93/x
  3. Step 3: Cross multiply
    155,124.82x = 214,090.68 × 87,141.93
  4. Step 4: Simplify right side
    155,124.82x = 18,656,275,050.21
  5. Step 5: Solve for x
    x = 18,656,275,050.21/155,124.82
  6. Step 6: Final answer
    x = 120,266.22

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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.