Home / 207,128.14-285,846.52-115,247.93

Finding the Fourth Proportional to 207,128.14, 285,846.52 and 115,247.93

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Solution

The fourth proportional to 207,128.14, 285,846.52 and 115,247.93 is: 159,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,128.14 : 285,846.52 = 115,247.93 : x
  2. Step 2: Convert to fraction form
    207,128.14/285,846.52 = 115,247.93/x
  3. Step 3: Cross multiply
    207,128.14x = 285,846.52 × 115,247.93
  4. Step 4: Simplify right side
    207,128.14x = 32,943,220,154.20
  5. Step 5: Solve for x
    x = 32,943,220,154.20/207,128.14
  6. Step 6: Final answer
    x = 159,047.54

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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.