Home / 100,525.24-138,708.21-58,087.72

Finding the Fourth Proportional to 100,525.24, 138,708.21 and 58,087.72

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Solution

The fourth proportional to 100,525.24, 138,708.21 and 58,087.72 is: 80,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,525.24 : 138,708.21 = 58,087.72 : x
  2. Step 2: Convert to fraction form
    100,525.24/138,708.21 = 58,087.72/x
  3. Step 3: Cross multiply
    100,525.24x = 138,708.21 × 58,087.72
  4. Step 4: Simplify right side
    100,525.24x = 8,057,243,664.18
  5. Step 5: Solve for x
    x = 8,057,243,664.18/100,525.24
  6. Step 6: Final answer
    x = 80,151.45

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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.