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Finding the Fourth Proportional to 178,007.36, 245,656.91 and 101,538.90

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Solution

The fourth proportional to 178,007.36, 245,656.91 and 101,538.90 is: 140,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,007.36 : 245,656.91 = 101,538.90 : x
  2. Step 2: Convert to fraction form
    178,007.36/245,656.91 = 101,538.90/x
  3. Step 3: Cross multiply
    178,007.36x = 245,656.91 × 101,538.90
  4. Step 4: Simplify right side
    178,007.36x = 24,943,732,672.65
  5. Step 5: Solve for x
    x = 24,943,732,672.65/178,007.36
  6. Step 6: Final answer
    x = 140,127.54

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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.