Home / 104,042.21-143,578.58-56,295.95

Finding the Fourth Proportional to 104,042.21, 143,578.58 and 56,295.95

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Solution

The fourth proportional to 104,042.21, 143,578.58 and 56,295.95 is: 77,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,042.21 : 143,578.58 = 56,295.95 : x
  2. Step 2: Convert to fraction form
    104,042.21/143,578.58 = 56,295.95/x
  3. Step 3: Cross multiply
    104,042.21x = 143,578.58 × 56,295.95
  4. Step 4: Simplify right side
    104,042.21x = 8,082,891,561.38
  5. Step 5: Solve for x
    x = 8,082,891,561.38/104,042.21
  6. Step 6: Final answer
    x = 77,688.58

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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.