Home / 112,108.32-154,621.96-71,825.84

Finding the Fourth Proportional to 112,108.32, 154,621.96 and 71,825.84

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Solution

The fourth proportional to 112,108.32, 154,621.96 and 71,825.84 is: 99,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,108.32 : 154,621.96 = 71,825.84 : x
  2. Step 2: Convert to fraction form
    112,108.32/154,621.96 = 71,825.84/x
  3. Step 3: Cross multiply
    112,108.32x = 154,621.96 × 71,825.84
  4. Step 4: Simplify right side
    112,108.32x = 11,105,852,159.45
  5. Step 5: Solve for x
    x = 11,105,852,159.45/112,108.32
  6. Step 6: Final answer
    x = 99,063.59

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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.