Home / 287,819.56-431,779.26-88,135.24

Finding the Fourth Proportional to 287,819.56, 431,779.26 and 88,135.24

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Solution

The fourth proportional to 287,819.56, 431,779.26 and 88,135.24 is: 132,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,819.56 : 431,779.26 = 88,135.24 : x
  2. Step 2: Convert to fraction form
    287,819.56/431,779.26 = 88,135.24/x
  3. Step 3: Cross multiply
    287,819.56x = 431,779.26 × 88,135.24
  4. Step 4: Simplify right side
    287,819.56x = 38,054,968,707.12
  5. Step 5: Solve for x
    x = 38,054,968,707.12/287,819.56
  6. Step 6: Final answer
    x = 132,218.15

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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.