Home / 104,171.28-143,756.46-56,424.75

Finding the Fourth Proportional to 104,171.28, 143,756.46 and 56,424.75

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Solution

The fourth proportional to 104,171.28, 143,756.46 and 56,424.75 is: 77,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,171.28 : 143,756.46 = 56,424.75 : x
  2. Step 2: Convert to fraction form
    104,171.28/143,756.46 = 56,424.75/x
  3. Step 3: Cross multiply
    104,171.28x = 143,756.46 × 56,424.75
  4. Step 4: Simplify right side
    104,171.28x = 8,111,422,316.39
  5. Step 5: Solve for x
    x = 8,111,422,316.39/104,171.28
  6. Step 6: Final answer
    x = 77,866.21

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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.