Home / 100,914.12-139,261.50-58,497.26

Finding the Fourth Proportional to 100,914.12, 139,261.50 and 58,497.26

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Solution

The fourth proportional to 100,914.12, 139,261.50 and 58,497.26 is: 80,726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,914.12 : 139,261.50 = 58,497.26 : x
  2. Step 2: Convert to fraction form
    100,914.12/139,261.50 = 58,497.26/x
  3. Step 3: Cross multiply
    100,914.12x = 139,261.50 × 58,497.26
  4. Step 4: Simplify right side
    100,914.12x = 8,146,416,173.49
  5. Step 5: Solve for x
    x = 8,146,416,173.49/100,914.12
  6. Step 6: Final answer
    x = 80,726.23

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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.