Home / 188,085.12-259,538.56-112,631.68

Finding the Fourth Proportional to 188,085.12, 259,538.56 and 112,631.68

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Solution

The fourth proportional to 188,085.12, 259,538.56 and 112,631.68 is: 155,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,085.12 : 259,538.56 = 112,631.68 : x
  2. Step 2: Convert to fraction form
    188,085.12/259,538.56 = 112,631.68/x
  3. Step 3: Cross multiply
    188,085.12x = 259,538.56 × 112,631.68
  4. Step 4: Simplify right side
    188,085.12x = 29,232,264,037.58
  5. Step 5: Solve for x
    x = 29,232,264,037.58/188,085.12
  6. Step 6: Final answer
    x = 155,420.40

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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.