Home / 211,345.56-291,750.66-134,964.72

Finding the Fourth Proportional to 211,345.56, 291,750.66 and 134,964.72

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Solution

The fourth proportional to 211,345.56, 291,750.66 and 134,964.72 is: 186,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,345.56 : 291,750.66 = 134,964.72 : x
  2. Step 2: Convert to fraction form
    211,345.56/291,750.66 = 134,964.72/x
  3. Step 3: Cross multiply
    211,345.56x = 291,750.66 × 134,964.72
  4. Step 4: Simplify right side
    211,345.56x = 39,376,046,136.72
  5. Step 5: Solve for x
    x = 39,376,046,136.72/211,345.56
  6. Step 6: Final answer
    x = 186,311.21

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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.