Home / 104,175.39-143,761.90-56,428.92

Finding the Fourth Proportional to 104,175.39, 143,761.90 and 56,428.92

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Solution

The fourth proportional to 104,175.39, 143,761.90 and 56,428.92 is: 77,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,175.39 : 143,761.90 = 56,428.92 : x
  2. Step 2: Convert to fraction form
    104,175.39/143,761.90 = 56,428.92/x
  3. Step 3: Cross multiply
    104,175.39x = 143,761.90 × 56,428.92
  4. Step 4: Simplify right side
    104,175.39x = 8,112,329,152.18
  5. Step 5: Solve for x
    x = 8,112,329,152.18/104,175.39
  6. Step 6: Final answer
    x = 77,871.84

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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.