Home / 116,157.21-160,353.26-77,902.76

Finding the Fourth Proportional to 116,157.21, 160,353.26 and 77,902.76

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Solution

The fourth proportional to 116,157.21, 160,353.26 and 77,902.76 is: 107,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,157.21 : 160,353.26 = 77,902.76 : x
  2. Step 2: Convert to fraction form
    116,157.21/160,353.26 = 77,902.76/x
  3. Step 3: Cross multiply
    116,157.21x = 160,353.26 × 77,902.76
  4. Step 4: Simplify right side
    116,157.21x = 12,491,961,529.00
  5. Step 5: Solve for x
    x = 12,491,961,529.00/116,157.21
  6. Step 6: Final answer
    x = 107,543.57

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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.