Home / 187,621.08-258,907.44-102,721.72

Finding the Fourth Proportional to 187,621.08, 258,907.44 and 102,721.72

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Solution

The fourth proportional to 187,621.08, 258,907.44 and 102,721.72 is: 141,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,621.08 : 258,907.44 = 102,721.72 : x
  2. Step 2: Convert to fraction form
    187,621.08/258,907.44 = 102,721.72/x
  3. Step 3: Cross multiply
    187,621.08x = 258,907.44 × 102,721.72
  4. Step 4: Simplify right side
    187,621.08x = 26,595,417,557.60
  5. Step 5: Solve for x
    x = 26,595,417,557.60/187,621.08
  6. Step 6: Final answer
    x = 141,750.69

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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.