Home / 104,186.28-143,776.62-56,439.72

Finding the Fourth Proportional to 104,186.28, 143,776.62 and 56,439.72

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Solution

The fourth proportional to 104,186.28, 143,776.62 and 56,439.72 is: 77,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,186.28 : 143,776.62 = 56,439.72 : x
  2. Step 2: Convert to fraction form
    104,186.28/143,776.62 = 56,439.72/x
  3. Step 3: Cross multiply
    104,186.28x = 143,776.62 × 56,439.72
  4. Step 4: Simplify right side
    104,186.28x = 8,114,712,175.35
  5. Step 5: Solve for x
    x = 8,114,712,175.35/104,186.28
  6. Step 6: Final answer
    x = 77,886.57

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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.