Home / 103,941.72-143,439.57-56,195.06

Finding the Fourth Proportional to 103,941.72, 143,439.57 and 56,195.06

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Solution

The fourth proportional to 103,941.72, 143,439.57 and 56,195.06 is: 77,549.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,941.72 : 143,439.57 = 56,195.06 : x
  2. Step 2: Convert to fraction form
    103,941.72/143,439.57 = 56,195.06/x
  3. Step 3: Cross multiply
    103,941.72x = 143,439.57 × 56,195.06
  4. Step 4: Simplify right side
    103,941.72x = 8,060,594,525.33
  5. Step 5: Solve for x
    x = 8,060,594,525.33/103,941.72
  6. Step 6: Final answer
    x = 77,549.17

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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.