Home / 112,031.20-168,046.80-70,559.20

Finding the Fourth Proportional to 112,031.20, 168,046.80 and 70,559.20

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Solution

The fourth proportional to 112,031.20, 168,046.80 and 70,559.20 is: 105,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.20 : 168,046.80 = 70,559.20 : x
  2. Step 2: Convert to fraction form
    112,031.20/168,046.80 = 70,559.20/x
  3. Step 3: Cross multiply
    112,031.20x = 168,046.80 × 70,559.20
  4. Step 4: Simplify right side
    112,031.20x = 11,857,247,770.56
  5. Step 5: Solve for x
    x = 11,857,247,770.56/112,031.20
  6. Step 6: Final answer
    x = 105,838.80

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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.