Home / 215,731.07-297,700.75-125,090.86

Finding the Fourth Proportional to 215,731.07, 297,700.75 and 125,090.86

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Solution

The fourth proportional to 215,731.07, 297,700.75 and 125,090.86 is: 172,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,731.07 : 297,700.75 = 125,090.86 : x
  2. Step 2: Convert to fraction form
    215,731.07/297,700.75 = 125,090.86/x
  3. Step 3: Cross multiply
    215,731.07x = 297,700.75 × 125,090.86
  4. Step 4: Simplify right side
    215,731.07x = 37,239,641,351.64
  5. Step 5: Solve for x
    x = 37,239,641,351.64/215,731.07
  6. Step 6: Final answer
    x = 172,620.67

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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.