Home / 207,815.02-286,784.79-112,321.72

Finding the Fourth Proportional to 207,815.02, 286,784.79 and 112,321.72

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Solution

The fourth proportional to 207,815.02, 286,784.79 and 112,321.72 is: 155,004.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,815.02 : 286,784.79 = 112,321.72 : x
  2. Step 2: Convert to fraction form
    207,815.02/286,784.79 = 112,321.72/x
  3. Step 3: Cross multiply
    207,815.02x = 286,784.79 × 112,321.72
  4. Step 4: Simplify right side
    207,815.02x = 32,212,160,882.64
  5. Step 5: Solve for x
    x = 32,212,160,882.64/207,815.02
  6. Step 6: Final answer
    x = 155,004.01

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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.