Home / 112,156.35-154,736.68-71,892.32

Finding the Fourth Proportional to 112,156.35, 154,736.68 and 71,892.32

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Solution

The fourth proportional to 112,156.35, 154,736.68 and 71,892.32 is: 99,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,156.35 : 154,736.68 = 71,892.32 : x
  2. Step 2: Convert to fraction form
    112,156.35/154,736.68 = 71,892.32/x
  3. Step 3: Cross multiply
    112,156.35x = 154,736.68 × 71,892.32
  4. Step 4: Simplify right side
    112,156.35x = 11,124,378,140.61
  5. Step 5: Solve for x
    x = 11,124,378,140.61/112,156.35
  6. Step 6: Final answer
    x = 99,186.34

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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.