Home / 112,011.80-154,472.42-81,749.18

Finding the Fourth Proportional to 112,011.80, 154,472.42 and 81,749.18

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Solution

The fourth proportional to 112,011.80, 154,472.42 and 81,749.18 is: 112,738.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,011.80 : 154,472.42 = 81,749.18 : x
  2. Step 2: Convert to fraction form
    112,011.80/154,472.42 = 81,749.18/x
  3. Step 3: Cross multiply
    112,011.80x = 154,472.42 × 81,749.18
  4. Step 4: Simplify right side
    112,011.80x = 12,627,994,258.17
  5. Step 5: Solve for x
    x = 12,627,994,258.17/112,011.80
  6. Step 6: Final answer
    x = 112,738.08

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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.