Home / 104,115.27-143,679.15-56,368.65

Finding the Fourth Proportional to 104,115.27, 143,679.15 and 56,368.65

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Solution

The fourth proportional to 104,115.27, 143,679.15 and 56,368.65 is: 77,788.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,115.27 : 143,679.15 = 56,368.65 : x
  2. Step 2: Convert to fraction form
    104,115.27/143,679.15 = 56,368.65/x
  3. Step 3: Cross multiply
    104,115.27x = 143,679.15 × 56,368.65
  4. Step 4: Simplify right side
    104,115.27x = 8,098,999,718.65
  5. Step 5: Solve for x
    x = 8,098,999,718.65/104,115.27
  6. Step 6: Final answer
    x = 77,788.78

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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.