Home / 178,778.64-246,687.12-103,312.56

Finding the Fourth Proportional to 178,778.64, 246,687.12 and 103,312.56

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Solution

The fourth proportional to 178,778.64, 246,687.12 and 103,312.56 is: 142,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,778.64 : 246,687.12 = 103,312.56 : x
  2. Step 2: Convert to fraction form
    178,778.64/246,687.12 = 103,312.56/x
  3. Step 3: Cross multiply
    178,778.64x = 246,687.12 × 103,312.56
  4. Step 4: Simplify right side
    178,778.64x = 25,485,877,886.23
  5. Step 5: Solve for x
    x = 25,485,877,886.23/178,778.64
  6. Step 6: Final answer
    x = 142,555.50

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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.