Home / 112,015.90-154,531.74-75,705.76

Finding the Fourth Proportional to 112,015.90, 154,531.74 and 75,705.76

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Solution

The fourth proportional to 112,015.90, 154,531.74 and 75,705.76 is: 104,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.90 : 154,531.74 = 75,705.76 : x
  2. Step 2: Convert to fraction form
    112,015.90/154,531.74 = 75,705.76/x
  3. Step 3: Cross multiply
    112,015.90x = 154,531.74 × 75,705.76
  4. Step 4: Simplify right side
    112,015.90x = 11,698,942,820.82
  5. Step 5: Solve for x
    x = 11,698,942,820.82/112,015.90
  6. Step 6: Final answer
    x = 104,440.02

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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.