Home / 104,042.90-143,578.14-56,295.20

Finding the Fourth Proportional to 104,042.90, 143,578.14 and 56,295.20

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Solution

The fourth proportional to 104,042.90, 143,578.14 and 56,295.20 is: 77,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,042.90 : 143,578.14 = 56,295.20 : x
  2. Step 2: Convert to fraction form
    104,042.90/143,578.14 = 56,295.20/x
  3. Step 3: Cross multiply
    104,042.90x = 143,578.14 × 56,295.20
  4. Step 4: Simplify right side
    104,042.90x = 8,082,760,106.93
  5. Step 5: Solve for x
    x = 8,082,760,106.93/104,042.90
  6. Step 6: Final answer
    x = 77,686.80

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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.