Home / 187,800.26-259,166.40-102,915.50

Finding the Fourth Proportional to 187,800.26, 259,166.40 and 102,915.50

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Solution

The fourth proportional to 187,800.26, 259,166.40 and 102,915.50 is: 142,024.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,800.26 : 259,166.40 = 102,915.50 : x
  2. Step 2: Convert to fraction form
    187,800.26/259,166.40 = 102,915.50/x
  3. Step 3: Cross multiply
    187,800.26x = 259,166.40 × 102,915.50
  4. Step 4: Simplify right side
    187,800.26x = 26,672,239,639.20
  5. Step 5: Solve for x
    x = 26,672,239,639.20/187,800.26
  6. Step 6: Final answer
    x = 142,024.51

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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.