Home / 109,731.52-151,435.96-61,983.64

Finding the Fourth Proportional to 109,731.52, 151,435.96 and 61,983.64

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Solution

The fourth proportional to 109,731.52, 151,435.96 and 61,983.64 is: 85,541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,731.52 : 151,435.96 = 61,983.64 : x
  2. Step 2: Convert to fraction form
    109,731.52/151,435.96 = 61,983.64/x
  3. Step 3: Cross multiply
    109,731.52x = 151,435.96 × 61,983.64
  4. Step 4: Simplify right side
    109,731.52x = 9,386,552,027.69
  5. Step 5: Solve for x
    x = 9,386,552,027.69/109,731.52
  6. Step 6: Final answer
    x = 85,541.07

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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.