Home / 112,026.20-168,039.30-70,554.20

Finding the Fourth Proportional to 112,026.20, 168,039.30 and 70,554.20

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Solution

The fourth proportional to 112,026.20, 168,039.30 and 70,554.20 is: 105,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,026.20 : 168,039.30 = 70,554.20 : x
  2. Step 2: Convert to fraction form
    112,026.20/168,039.30 = 70,554.20/x
  3. Step 3: Cross multiply
    112,026.20x = 168,039.30 × 70,554.20
  4. Step 4: Simplify right side
    112,026.20x = 11,855,878,380.06
  5. Step 5: Solve for x
    x = 11,855,878,380.06/112,026.20
  6. Step 6: Final answer
    x = 105,831.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.