Home / 403,939.48-606,047.63-137,886.83

Finding the Fourth Proportional to 403,939.48, 606,047.63 and 137,886.83

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Solution

The fourth proportional to 403,939.48, 606,047.63 and 137,886.83 is: 206,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,939.48 : 606,047.63 = 137,886.83 : x
  2. Step 2: Convert to fraction form
    403,939.48/606,047.63 = 137,886.83/x
  3. Step 3: Cross multiply
    403,939.48x = 606,047.63 × 137,886.83
  4. Step 4: Simplify right side
    403,939.48x = 83,565,987,756.75
  5. Step 5: Solve for x
    x = 83,565,987,756.75/403,939.48
  6. Step 6: Final answer
    x = 206,877.49

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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.