Home / 137,727.10-206,590.65-121,656.70

Finding the Fourth Proportional to 137,727.10, 206,590.65 and 121,656.70

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Solution

The fourth proportional to 137,727.10, 206,590.65 and 121,656.70 is: 182,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,727.10 : 206,590.65 = 121,656.70 : x
  2. Step 2: Convert to fraction form
    137,727.10/206,590.65 = 121,656.70/x
  3. Step 3: Cross multiply
    137,727.10x = 206,590.65 × 121,656.70
  4. Step 4: Simplify right side
    137,727.10x = 25,133,136,729.86
  5. Step 5: Solve for x
    x = 25,133,136,729.86/137,727.10
  6. Step 6: Final answer
    x = 182,485.05

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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.