Home / 151,130.09-208,615.67-129,823.85

Finding the Fourth Proportional to 151,130.09, 208,615.67 and 129,823.85

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Solution

The fourth proportional to 151,130.09, 208,615.67 and 129,823.85 is: 179,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,130.09 : 208,615.67 = 129,823.85 : x
  2. Step 2: Convert to fraction form
    151,130.09/208,615.67 = 129,823.85/x
  3. Step 3: Cross multiply
    151,130.09x = 208,615.67 × 129,823.85
  4. Step 4: Simplify right side
    151,130.09x = 27,083,289,449.73
  5. Step 5: Solve for x
    x = 27,083,289,449.73/151,130.09
  6. Step 6: Final answer
    x = 179,205.14

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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.