Home / 187,172.32-258,297.60-105,494.08

Finding the Fourth Proportional to 187,172.32, 258,297.60 and 105,494.08

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Solution

The fourth proportional to 187,172.32, 258,297.60 and 105,494.08 is: 145,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,172.32 : 258,297.60 = 105,494.08 : x
  2. Step 2: Convert to fraction form
    187,172.32/258,297.60 = 105,494.08/x
  3. Step 3: Cross multiply
    187,172.32x = 258,297.60 × 105,494.08
  4. Step 4: Simplify right side
    187,172.32x = 27,248,867,678.21
  5. Step 5: Solve for x
    x = 27,248,867,678.21/187,172.32
  6. Step 6: Final answer
    x = 145,581.72

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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.