Home / 138,818.94-208,228.34-45,324.69

Finding the Fourth Proportional to 138,818.94, 208,228.34 and 45,324.69

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Solution

The fourth proportional to 138,818.94, 208,228.34 and 45,324.69 is: 67,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,818.94 : 208,228.34 = 45,324.69 : x
  2. Step 2: Convert to fraction form
    138,818.94/208,228.34 = 45,324.69/x
  3. Step 3: Cross multiply
    138,818.94x = 208,228.34 × 45,324.69
  4. Step 4: Simplify right side
    138,818.94x = 9,437,884,733.09
  5. Step 5: Solve for x
    x = 9,437,884,733.09/138,818.94
  6. Step 6: Final answer
    x = 67,987.01

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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.