Home / 153,316.14-230,021.22-78,489.30

Finding the Fourth Proportional to 153,316.14, 230,021.22 and 78,489.30

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Solution

The fourth proportional to 153,316.14, 230,021.22 and 78,489.30 is: 117,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,316.14 : 230,021.22 = 78,489.30 : x
  2. Step 2: Convert to fraction form
    153,316.14/230,021.22 = 78,489.30/x
  3. Step 3: Cross multiply
    153,316.14x = 230,021.22 × 78,489.30
  4. Step 4: Simplify right side
    153,316.14x = 18,054,204,542.95
  5. Step 5: Solve for x
    x = 18,054,204,542.95/153,316.14
  6. Step 6: Final answer
    x = 117,758.02

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1.5x scale

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.