Home / 100,914.96-139,262.68-58,498.12

Finding the Fourth Proportional to 100,914.96, 139,262.68 and 58,498.12

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Solution

The fourth proportional to 100,914.96, 139,262.68 and 58,498.12 is: 80,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,914.96 : 139,262.68 = 58,498.12 : x
  2. Step 2: Convert to fraction form
    100,914.96/139,262.68 = 58,498.12/x
  3. Step 3: Cross multiply
    100,914.96x = 139,262.68 × 58,498.12
  4. Step 4: Simplify right side
    100,914.96x = 8,146,604,966.16
  5. Step 5: Solve for x
    x = 8,146,604,966.16/100,914.96
  6. Step 6: Final answer
    x = 80,727.43

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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.