Home / 115,049.84-158,765.28-64,065.20

Finding the Fourth Proportional to 115,049.84, 158,765.28 and 64,065.20

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Solution

The fourth proportional to 115,049.84, 158,765.28 and 64,065.20 is: 88,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,049.84 : 158,765.28 = 64,065.20 : x
  2. Step 2: Convert to fraction form
    115,049.84/158,765.28 = 64,065.20/x
  3. Step 3: Cross multiply
    115,049.84x = 158,765.28 × 64,065.20
  4. Step 4: Simplify right side
    115,049.84x = 10,171,329,416.26
  5. Step 5: Solve for x
    x = 10,171,329,416.26/115,049.84
  6. Step 6: Final answer
    x = 88,408.03

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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.