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Finding the Fourth Proportional to 178,006.72, 245,710.72 and 102,585.28

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Solution

The fourth proportional to 178,006.72, 245,710.72 and 102,585.28 is: 141,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,006.72 : 245,710.72 = 102,585.28 : x
  2. Step 2: Convert to fraction form
    178,006.72/245,710.72 = 102,585.28/x
  3. Step 3: Cross multiply
    178,006.72x = 245,710.72 × 102,585.28
  4. Step 4: Simplify right side
    178,006.72x = 25,206,303,010.20
  5. Step 5: Solve for x
    x = 25,206,303,010.20/178,006.72
  6. Step 6: Final answer
    x = 141,603.10

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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.