Home / 211,419.72-291,756.74-115,925.58

Finding the Fourth Proportional to 211,419.72, 291,756.74 and 115,925.58

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Solution

The fourth proportional to 211,419.72, 291,756.74 and 115,925.58 is: 159,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,419.72 : 291,756.74 = 115,925.58 : x
  2. Step 2: Convert to fraction form
    211,419.72/291,756.74 = 115,925.58/x
  3. Step 3: Cross multiply
    211,419.72x = 291,756.74 × 115,925.58
  4. Step 4: Simplify right side
    211,419.72x = 33,822,068,723.78
  5. Step 5: Solve for x
    x = 33,822,068,723.78/211,419.72
  6. Step 6: Final answer
    x = 159,975.94

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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.