Home / 151,839.42-209,489.67-84,758.46

Finding the Fourth Proportional to 151,839.42, 209,489.67 and 84,758.46

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Solution

The fourth proportional to 151,839.42, 209,489.67 and 84,758.46 is: 116,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,839.42 : 209,489.67 = 84,758.46 : x
  2. Step 2: Convert to fraction form
    151,839.42/209,489.67 = 84,758.46/x
  3. Step 3: Cross multiply
    151,839.42x = 209,489.67 × 84,758.46
  4. Step 4: Simplify right side
    151,839.42x = 17,756,021,815.11
  5. Step 5: Solve for x
    x = 17,756,021,815.11/151,839.42
  6. Step 6: Final answer
    x = 116,939.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.