Home / 153,230.20-230,060.59-78,404.02

Finding the Fourth Proportional to 153,230.20, 230,060.59 and 78,404.02

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Solution

The fourth proportional to 153,230.20, 230,060.59 and 78,404.02 is: 117,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,230.20 : 230,060.59 = 78,404.02 : x
  2. Step 2: Convert to fraction form
    153,230.20/230,060.59 = 78,404.02/x
  3. Step 3: Cross multiply
    153,230.20x = 230,060.59 × 78,404.02
  4. Step 4: Simplify right side
    153,230.20x = 18,037,674,328.41
  5. Step 5: Solve for x
    x = 18,037,674,328.41/153,230.20
  6. Step 6: Final answer
    x = 117,716.19

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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.