Home / 159,408.01-219,984.51-87,788.32

Finding the Fourth Proportional to 159,408.01, 219,984.51 and 87,788.32

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Solution

The fourth proportional to 159,408.01, 219,984.51 and 87,788.32 is: 121,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,408.01 : 219,984.51 = 87,788.32 : x
  2. Step 2: Convert to fraction form
    159,408.01/219,984.51 = 87,788.32/x
  3. Step 3: Cross multiply
    159,408.01x = 219,984.51 × 87,788.32
  4. Step 4: Simplify right side
    159,408.01x = 19,312,070,558.92
  5. Step 5: Solve for x
    x = 19,312,070,558.92/159,408.01
  6. Step 6: Final answer
    x = 121,148.68

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1.5x scale

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.