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Finding the Fourth Proportional to 139,077.66, 208,632.78 and 44,274.63

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Solution

The fourth proportional to 139,077.66, 208,632.78 and 44,274.63 is: 66,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,077.66 : 208,632.78 = 44,274.63 : x
  2. Step 2: Convert to fraction form
    139,077.66/208,632.78 = 44,274.63/x
  3. Step 3: Cross multiply
    139,077.66x = 208,632.78 × 44,274.63
  4. Step 4: Simplify right side
    139,077.66x = 9,237,139,140.37
  5. Step 5: Solve for x
    x = 9,237,139,140.37/139,077.66
  6. Step 6: Final answer
    x = 66,417.13

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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.