Home / 187,050.12-258,129.20-102,167.40

Finding the Fourth Proportional to 187,050.12, 258,129.20 and 102,167.40

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Solution

The fourth proportional to 187,050.12, 258,129.20 and 102,167.40 is: 140,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,050.12 : 258,129.20 = 102,167.40 : x
  2. Step 2: Convert to fraction form
    187,050.12/258,129.20 = 102,167.40/x
  3. Step 3: Cross multiply
    187,050.12x = 258,129.20 × 102,167.40
  4. Step 4: Simplify right side
    187,050.12x = 26,372,389,228.08
  5. Step 5: Solve for x
    x = 26,372,389,228.08/187,050.12
  6. Step 6: Final answer
    x = 140,991.03

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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.