Home / 112,987.82-169,482.70-28,748.06

Finding the Fourth Proportional to 112,987.82, 169,482.70 and 28,748.06

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Solution

The fourth proportional to 112,987.82, 169,482.70 and 28,748.06 is: 43,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,987.82 : 169,482.70 = 28,748.06 : x
  2. Step 2: Convert to fraction form
    112,987.82/169,482.70 = 28,748.06/x
  3. Step 3: Cross multiply
    112,987.82x = 169,482.70 × 28,748.06
  4. Step 4: Simplify right side
    112,987.82x = 4,872,298,828.56
  5. Step 5: Solve for x
    x = 4,872,298,828.56/112,987.82
  6. Step 6: Final answer
    x = 43,122.34

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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.