Home / 104,173.20-143,757.36-56,426.40

Finding the Fourth Proportional to 104,173.20, 143,757.36 and 56,426.40

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Solution

The fourth proportional to 104,173.20, 143,757.36 and 56,426.40 is: 77,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,173.20 : 143,757.36 = 56,426.40 : x
  2. Step 2: Convert to fraction form
    104,173.20/143,757.36 = 56,426.40/x
  3. Step 3: Cross multiply
    104,173.20x = 143,757.36 × 56,426.40
  4. Step 4: Simplify right side
    104,173.20x = 8,111,710,298.30
  5. Step 5: Solve for x
    x = 8,111,710,298.30/104,173.20
  6. Step 6: Final answer
    x = 77,867.54

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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.