Home / 121,887.04-182,756.80-79,716.32

Finding the Fourth Proportional to 121,887.04, 182,756.80 and 79,716.32

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Solution

The fourth proportional to 121,887.04, 182,756.80 and 79,716.32 is: 119,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,887.04 : 182,756.80 = 79,716.32 : x
  2. Step 2: Convert to fraction form
    121,887.04/182,756.80 = 79,716.32/x
  3. Step 3: Cross multiply
    121,887.04x = 182,756.80 × 79,716.32
  4. Step 4: Simplify right side
    121,887.04x = 14,568,699,550.98
  5. Step 5: Solve for x
    x = 14,568,699,550.98/121,887.04
  6. Step 6: Final answer
    x = 119,526.24

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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.