Home / 112,101.46-154,612.49-71,818.94

Finding the Fourth Proportional to 112,101.46, 154,612.49 and 71,818.94

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Solution

The fourth proportional to 112,101.46, 154,612.49 and 71,818.94 is: 99,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,101.46 : 154,612.49 = 71,818.94 : x
  2. Step 2: Convert to fraction form
    112,101.46/154,612.49 = 71,818.94/x
  3. Step 3: Cross multiply
    112,101.46x = 154,612.49 × 71,818.94
  4. Step 4: Simplify right side
    112,101.46x = 11,104,105,142.56
  5. Step 5: Solve for x
    x = 11,104,105,142.56/112,101.46
  6. Step 6: Final answer
    x = 99,054.06

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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.