Home / 187,765.90-259,117.07-111,322.71

Finding the Fourth Proportional to 187,765.90, 259,117.07 and 111,322.71

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Solution

The fourth proportional to 187,765.90, 259,117.07 and 111,322.71 is: 153,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.90 : 259,117.07 = 111,322.71 : x
  2. Step 2: Convert to fraction form
    187,765.90/259,117.07 = 111,322.71/x
  3. Step 3: Cross multiply
    187,765.90x = 259,117.07 × 111,322.71
  4. Step 4: Simplify right side
    187,765.90x = 28,845,613,883.05
  5. Step 5: Solve for x
    x = 28,845,613,883.05/187,765.90
  6. Step 6: Final answer
    x = 153,625.41

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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.