Home / 104,209.86-143,809.41-56,464.50

Finding the Fourth Proportional to 104,209.86, 143,809.41 and 56,464.50

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Solution

The fourth proportional to 104,209.86, 143,809.41 and 56,464.50 is: 77,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,209.86 : 143,809.41 = 56,464.50 : x
  2. Step 2: Convert to fraction form
    104,209.86/143,809.41 = 56,464.50/x
  3. Step 3: Cross multiply
    104,209.86x = 143,809.41 × 56,464.50
  4. Step 4: Simplify right side
    104,209.86x = 8,120,126,430.95
  5. Step 5: Solve for x
    x = 8,120,126,430.95/104,209.86
  6. Step 6: Final answer
    x = 77,920.90

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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.