Home / 187,210.05-258,350-102,327.12

Finding the Fourth Proportional to 187,210.05, 258,350 and 102,327.12

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Solution

The fourth proportional to 187,210.05, 258,350 and 102,327.12 is: 141,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,210.05 : 258,350 = 102,327.12 : x
  2. Step 2: Convert to fraction form
    187,210.05/258,350 = 102,327.12/x
  3. Step 3: Cross multiply
    187,210.05x = 258,350 × 102,327.12
  4. Step 4: Simplify right side
    187,210.05x = 26,436,211,452
  5. Step 5: Solve for x
    x = 26,436,211,452/187,210.05
  6. Step 6: Final answer
    x = 141,211.50

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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.