Home / 103,955.42-143,458.38-56,208.80

Finding the Fourth Proportional to 103,955.42, 143,458.38 and 56,208.80

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Solution

The fourth proportional to 103,955.42, 143,458.38 and 56,208.80 is: 77,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.42 : 143,458.38 = 56,208.80 : x
  2. Step 2: Convert to fraction form
    103,955.42/143,458.38 = 56,208.80/x
  3. Step 3: Cross multiply
    103,955.42x = 143,458.38 × 56,208.80
  4. Step 4: Simplify right side
    103,955.42x = 8,063,622,672.45
  5. Step 5: Solve for x
    x = 8,063,622,672.45/103,955.42
  6. Step 6: Final answer
    x = 77,568.09

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1.5x scale

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.