Home / 115,622.88-173,349.84-78,089.76

Finding the Fourth Proportional to 115,622.88, 173,349.84 and 78,089.76

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Solution

The fourth proportional to 115,622.88, 173,349.84 and 78,089.76 is: 117,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,622.88 : 173,349.84 = 78,089.76 : x
  2. Step 2: Convert to fraction form
    115,622.88/173,349.84 = 78,089.76/x
  3. Step 3: Cross multiply
    115,622.88x = 173,349.84 × 78,089.76
  4. Step 4: Simplify right side
    115,622.88x = 13,536,847,401.64
  5. Step 5: Solve for x
    x = 13,536,847,401.64/115,622.88
  6. Step 6: Final answer
    x = 117,077.58

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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.