Home / 104,561.38-144,295.29-56,815.12

Finding the Fourth Proportional to 104,561.38, 144,295.29 and 56,815.12

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Solution

The fourth proportional to 104,561.38, 144,295.29 and 56,815.12 is: 78,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,561.38 : 144,295.29 = 56,815.12 : x
  2. Step 2: Convert to fraction form
    104,561.38/144,295.29 = 56,815.12/x
  3. Step 3: Cross multiply
    104,561.38x = 144,295.29 × 56,815.12
  4. Step 4: Simplify right side
    104,561.38x = 8,198,154,216.78
  5. Step 5: Solve for x
    x = 8,198,154,216.78/104,561.38
  6. Step 6: Final answer
    x = 78,405.18

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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.