Home / 136,631.86-204,673.32-68,036.76

Finding the Fourth Proportional to 136,631.86, 204,673.32 and 68,036.76

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Solution

The fourth proportional to 136,631.86, 204,673.32 and 68,036.76 is: 101,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,631.86 : 204,673.32 = 68,036.76 : x
  2. Step 2: Convert to fraction form
    136,631.86/204,673.32 = 68,036.76/x
  3. Step 3: Cross multiply
    136,631.86x = 204,673.32 × 68,036.76
  4. Step 4: Simplify right side
    136,631.86x = 13,925,308,784.42
  5. Step 5: Solve for x
    x = 13,925,308,784.42/136,631.86
  6. Step 6: Final answer
    x = 101,918.46

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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.