Home / 211,186.95-291,445.28-115,693.62

Finding the Fourth Proportional to 211,186.95, 291,445.28 and 115,693.62

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Solution

The fourth proportional to 211,186.95, 291,445.28 and 115,693.62 is: 159,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,186.95 : 291,445.28 = 115,693.62 : x
  2. Step 2: Convert to fraction form
    211,186.95/291,445.28 = 115,693.62/x
  3. Step 3: Cross multiply
    211,186.95x = 291,445.28 × 115,693.62
  4. Step 4: Simplify right side
    211,186.95x = 33,718,359,475.11
  5. Step 5: Solve for x
    x = 33,718,359,475.11/211,186.95
  6. Step 6: Final answer
    x = 159,661.19

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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.