Home / 104,069.12-143,614.88-56,322.40

Finding the Fourth Proportional to 104,069.12, 143,614.88 and 56,322.40

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Solution

The fourth proportional to 104,069.12, 143,614.88 and 56,322.40 is: 77,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,069.12 : 143,614.88 = 56,322.40 : x
  2. Step 2: Convert to fraction form
    104,069.12/143,614.88 = 56,322.40/x
  3. Step 3: Cross multiply
    104,069.12x = 143,614.88 × 56,322.40
  4. Step 4: Simplify right side
    104,069.12x = 8,088,734,717.31
  5. Step 5: Solve for x
    x = 8,088,734,717.31/104,069.12
  6. Step 6: Final answer
    x = 77,724.64

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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.