Home / 104,129.30-143,698.51-56,382.68

Finding the Fourth Proportional to 104,129.30, 143,698.51 and 56,382.68

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Solution

The fourth proportional to 104,129.30, 143,698.51 and 56,382.68 is: 77,808.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,129.30 : 143,698.51 = 56,382.68 : x
  2. Step 2: Convert to fraction form
    104,129.30/143,698.51 = 56,382.68/x
  3. Step 3: Cross multiply
    104,129.30x = 143,698.51 × 56,382.68
  4. Step 4: Simplify right side
    104,129.30x = 8,102,107,218.38
  5. Step 5: Solve for x
    x = 8,102,107,218.38/104,129.30
  6. Step 6: Final answer
    x = 77,808.14

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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.