Home / 112,281.44-168,422.16-89,686.32

Finding the Fourth Proportional to 112,281.44, 168,422.16 and 89,686.32

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Solution

The fourth proportional to 112,281.44, 168,422.16 and 89,686.32 is: 134,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,281.44 : 168,422.16 = 89,686.32 : x
  2. Step 2: Convert to fraction form
    112,281.44/168,422.16 = 89,686.32/x
  3. Step 3: Cross multiply
    112,281.44x = 168,422.16 × 89,686.32
  4. Step 4: Simplify right side
    112,281.44x = 15,105,163,736.85
  5. Step 5: Solve for x
    x = 15,105,163,736.85/112,281.44
  6. Step 6: Final answer
    x = 134,529.49

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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.