Home / 153,429.05-211,716.96-85,452.37

Finding the Fourth Proportional to 153,429.05, 211,716.96 and 85,452.37

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Solution

The fourth proportional to 153,429.05, 211,716.96 and 85,452.37 is: 117,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,429.05 : 211,716.96 = 85,452.37 : x
  2. Step 2: Convert to fraction form
    153,429.05/211,716.96 = 85,452.37/x
  3. Step 3: Cross multiply
    153,429.05x = 211,716.96 × 85,452.37
  4. Step 4: Simplify right side
    153,429.05x = 18,091,715,151.46
  5. Step 5: Solve for x
    x = 18,091,715,151.46/153,429.05
  6. Step 6: Final answer
    x = 117,915.84

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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.