Home / 100,574.98-138,778.06-58,125.32

Finding the Fourth Proportional to 100,574.98, 138,778.06 and 58,125.32

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Solution

The fourth proportional to 100,574.98, 138,778.06 and 58,125.32 is: 80,204.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,574.98 : 138,778.06 = 58,125.32 : x
  2. Step 2: Convert to fraction form
    100,574.98/138,778.06 = 58,125.32/x
  3. Step 3: Cross multiply
    100,574.98x = 138,778.06 × 58,125.32
  4. Step 4: Simplify right side
    100,574.98x = 8,066,519,146.48
  5. Step 5: Solve for x
    x = 8,066,519,146.48/100,574.98
  6. Step 6: Final answer
    x = 80,204.03

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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.