Home / 187,122.20-258,223.01-102,239.19

Finding the Fourth Proportional to 187,122.20, 258,223.01 and 102,239.19

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Solution

The fourth proportional to 187,122.20, 258,223.01 and 102,239.19 is: 141,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,122.20 : 258,223.01 = 102,239.19 : x
  2. Step 2: Convert to fraction form
    187,122.20/258,223.01 = 102,239.19/x
  3. Step 3: Cross multiply
    187,122.20x = 258,223.01 × 102,239.19
  4. Step 4: Simplify right side
    187,122.20x = 26,400,510,870.57
  5. Step 5: Solve for x
    x = 26,400,510,870.57/187,122.20
  6. Step 6: Final answer
    x = 141,087.01

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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.