Home / 109,421.80-164,132.70-56,933.80

Finding the Fourth Proportional to 109,421.80, 164,132.70 and 56,933.80

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Solution

The fourth proportional to 109,421.80, 164,132.70 and 56,933.80 is: 85,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,421.80 : 164,132.70 = 56,933.80 : x
  2. Step 2: Convert to fraction form
    109,421.80/164,132.70 = 56,933.80/x
  3. Step 3: Cross multiply
    109,421.80x = 164,132.70 × 56,933.80
  4. Step 4: Simplify right side
    109,421.80x = 9,344,698,315.26
  5. Step 5: Solve for x
    x = 9,344,698,315.26/109,421.80
  6. Step 6: Final answer
    x = 85,400.70

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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.