Home / 100,923.04-139,284.66-55,605.61

Finding the Fourth Proportional to 100,923.04, 139,284.66 and 55,605.61

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Solution

The fourth proportional to 100,923.04, 139,284.66 and 55,605.61 is: 76,741.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,923.04 : 139,284.66 = 55,605.61 : x
  2. Step 2: Convert to fraction form
    100,923.04/139,284.66 = 55,605.61/x
  3. Step 3: Cross multiply
    100,923.04x = 139,284.66 × 55,605.61
  4. Step 4: Simplify right side
    100,923.04x = 7,745,008,482.94
  5. Step 5: Solve for x
    x = 7,745,008,482.94/100,923.04
  6. Step 6: Final answer
    x = 76,741.73

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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.