Home / 159,774.35-220,501.76-90,885.39

Finding the Fourth Proportional to 159,774.35, 220,501.76 and 90,885.39

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Solution

The fourth proportional to 159,774.35, 220,501.76 and 90,885.39 is: 125,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,774.35 : 220,501.76 = 90,885.39 : x
  2. Step 2: Convert to fraction form
    159,774.35/220,501.76 = 90,885.39/x
  3. Step 3: Cross multiply
    159,774.35x = 220,501.76 × 90,885.39
  4. Step 4: Simplify right side
    159,774.35x = 20,040,387,998.86
  5. Step 5: Solve for x
    x = 20,040,387,998.86/159,774.35
  6. Step 6: Final answer
    x = 125,429.32

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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.