Home / 212,728.14-318,791.43-118,000.13

Finding the Fourth Proportional to 212,728.14, 318,791.43 and 118,000.13

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Solution

The fourth proportional to 212,728.14, 318,791.43 and 118,000.13 is: 176,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,728.14 : 318,791.43 = 118,000.13 : x
  2. Step 2: Convert to fraction form
    212,728.14/318,791.43 = 118,000.13/x
  3. Step 3: Cross multiply
    212,728.14x = 318,791.43 × 118,000.13
  4. Step 4: Simplify right side
    212,728.14x = 37,617,428,588.93
  5. Step 5: Solve for x
    x = 37,617,428,588.93/212,728.14
  6. Step 6: Final answer
    x = 176,833.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.