Home / 187,890.30-259,290.72-107,328.60

Finding the Fourth Proportional to 187,890.30, 259,290.72 and 107,328.60

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Solution

The fourth proportional to 187,890.30, 259,290.72 and 107,328.60 is: 148,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,890.30 : 259,290.72 = 107,328.60 : x
  2. Step 2: Convert to fraction form
    187,890.30/259,290.72 = 107,328.60/x
  3. Step 3: Cross multiply
    187,890.30x = 259,290.72 × 107,328.60
  4. Step 4: Simplify right side
    187,890.30x = 27,829,309,970.59
  5. Step 5: Solve for x
    x = 27,829,309,970.59/187,890.30
  6. Step 6: Final answer
    x = 148,114.67

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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.