Home / 104,079.39-143,629.47-56,332.64

Finding the Fourth Proportional to 104,079.39, 143,629.47 and 56,332.64

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Solution

The fourth proportional to 104,079.39, 143,629.47 and 56,332.64 is: 77,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,079.39 : 143,629.47 = 56,332.64 : x
  2. Step 2: Convert to fraction form
    104,079.39/143,629.47 = 56,332.64/x
  3. Step 3: Cross multiply
    104,079.39x = 143,629.47 × 56,332.64
  4. Step 4: Simplify right side
    104,079.39x = 8,091,026,508.75
  5. Step 5: Solve for x
    x = 8,091,026,508.75/104,079.39
  6. Step 6: Final answer
    x = 77,738.99

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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.