Home / 208,178.24-312,317.04-67,937.12

Finding the Fourth Proportional to 208,178.24, 312,317.04 and 67,937.12

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Solution

The fourth proportional to 208,178.24, 312,317.04 and 67,937.12 is: 101,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,178.24 : 312,317.04 = 67,937.12 : x
  2. Step 2: Convert to fraction form
    208,178.24/312,317.04 = 67,937.12/x
  3. Step 3: Cross multiply
    208,178.24x = 312,317.04 × 67,937.12
  4. Step 4: Simplify right side
    208,178.24x = 21,217,920,224.52
  5. Step 5: Solve for x
    x = 21,217,920,224.52/208,178.24
  6. Step 6: Final answer
    x = 101,921.89

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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.