Home / 107,401.35-161,089.68-28,521.75

Finding the Fourth Proportional to 107,401.35, 161,089.68 and 28,521.75

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Solution

The fourth proportional to 107,401.35, 161,089.68 and 28,521.75 is: 42,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,401.35 : 161,089.68 = 28,521.75 : x
  2. Step 2: Convert to fraction form
    107,401.35/161,089.68 = 28,521.75/x
  3. Step 3: Cross multiply
    107,401.35x = 161,089.68 × 28,521.75
  4. Step 4: Simplify right side
    107,401.35x = 4,594,559,580.54
  5. Step 5: Solve for x
    x = 4,594,559,580.54/107,401.35
  6. Step 6: Final answer
    x = 42,779.35

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1.5x scale

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.