Home / 139,117.99-208,536.10-54,937.56

Finding the Fourth Proportional to 139,117.99, 208,536.10 and 54,937.56

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Solution

The fourth proportional to 139,117.99, 208,536.10 and 54,937.56 is: 82,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,117.99 : 208,536.10 = 54,937.56 : x
  2. Step 2: Convert to fraction form
    139,117.99/208,536.10 = 54,937.56/x
  3. Step 3: Cross multiply
    139,117.99x = 208,536.10 × 54,937.56
  4. Step 4: Simplify right side
    139,117.99x = 11,456,464,505.92
  5. Step 5: Solve for x
    x = 11,456,464,505.92/139,117.99
  6. Step 6: Final answer
    x = 82,350.70

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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.