Home / 187,272.18-258,435.57-102,389.22

Finding the Fourth Proportional to 187,272.18, 258,435.57 and 102,389.22

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Solution

The fourth proportional to 187,272.18, 258,435.57 and 102,389.22 is: 141,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,272.18 : 258,435.57 = 102,389.22 : x
  2. Step 2: Convert to fraction form
    187,272.18/258,435.57 = 102,389.22/x
  3. Step 3: Cross multiply
    187,272.18x = 258,435.57 × 102,389.22
  4. Step 4: Simplify right side
    187,272.18x = 26,461,016,432.56
  5. Step 5: Solve for x
    x = 26,461,016,432.56/187,272.18
  6. Step 6: Final answer
    x = 141,297.10

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1.5x scale

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.