Home / 178,731.78-246,485.07-121,456.59

Finding the Fourth Proportional to 178,731.78, 246,485.07 and 121,456.59

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Solution

The fourth proportional to 178,731.78, 246,485.07 and 121,456.59 is: 167,498.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,731.78 : 246,485.07 = 121,456.59 : x
  2. Step 2: Convert to fraction form
    178,731.78/246,485.07 = 121,456.59/x
  3. Step 3: Cross multiply
    178,731.78x = 246,485.07 × 121,456.59
  4. Step 4: Simplify right side
    178,731.78x = 29,937,236,088.11
  5. Step 5: Solve for x
    x = 29,937,236,088.11/178,731.78
  6. Step 6: Final answer
    x = 167,498.11

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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.