Home / 154,402.35-213,026.68-86,408.52

Finding the Fourth Proportional to 154,402.35, 213,026.68 and 86,408.52

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Solution

The fourth proportional to 154,402.35, 213,026.68 and 86,408.52 is: 119,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,402.35 : 213,026.68 = 86,408.52 : x
  2. Step 2: Convert to fraction form
    154,402.35/213,026.68 = 86,408.52/x
  3. Step 3: Cross multiply
    154,402.35x = 213,026.68 × 86,408.52
  4. Step 4: Simplify right side
    154,402.35x = 18,407,320,247.32
  5. Step 5: Solve for x
    x = 18,407,320,247.32/154,402.35
  6. Step 6: Final answer
    x = 119,216.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.