Home / 112,333.22-155,082.10-76,575.76

Finding the Fourth Proportional to 112,333.22, 155,082.10 and 76,575.76

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Solution

The fourth proportional to 112,333.22, 155,082.10 and 76,575.76 is: 105,716.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,333.22 : 155,082.10 = 76,575.76 : x
  2. Step 2: Convert to fraction form
    112,333.22/155,082.10 = 76,575.76/x
  3. Step 3: Cross multiply
    112,333.22x = 155,082.10 × 76,575.76
  4. Step 4: Simplify right side
    112,333.22x = 11,875,529,669.90
  5. Step 5: Solve for x
    x = 11,875,529,669.90/112,333.22
  6. Step 6: Final answer
    x = 105,716.99

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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.