Home / 211,124.34-291,351.57-115,631.28

Finding the Fourth Proportional to 211,124.34, 291,351.57 and 115,631.28

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Solution

The fourth proportional to 211,124.34, 291,351.57 and 115,631.28 is: 159,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,124.34 : 291,351.57 = 115,631.28 : x
  2. Step 2: Convert to fraction form
    211,124.34/291,351.57 = 115,631.28/x
  3. Step 3: Cross multiply
    211,124.34x = 291,351.57 × 115,631.28
  4. Step 4: Simplify right side
    211,124.34x = 33,689,354,969.11
  5. Step 5: Solve for x
    x = 33,689,354,969.11/211,124.34
  6. Step 6: Final answer
    x = 159,571.16

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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.