Home / 211,188.16-291,432.18-115,693.96

Finding the Fourth Proportional to 211,188.16, 291,432.18 and 115,693.96

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Solution

The fourth proportional to 211,188.16, 291,432.18 and 115,693.96 is: 159,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,188.16 : 291,432.18 = 115,693.96 : x
  2. Step 2: Convert to fraction form
    211,188.16/291,432.18 = 115,693.96/x
  3. Step 3: Cross multiply
    211,188.16x = 291,432.18 × 115,693.96
  4. Step 4: Simplify right side
    211,188.16x = 33,716,942,975.63
  5. Step 5: Solve for x
    x = 33,716,942,975.63/211,188.16
  6. Step 6: Final answer
    x = 159,653.57

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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.