Home / 100,926.27-139,277.61-55,603.21

Finding the Fourth Proportional to 100,926.27, 139,277.61 and 55,603.21

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Solution

The fourth proportional to 100,926.27, 139,277.61 and 55,603.21 is: 76,732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,926.27 : 139,277.61 = 55,603.21 : x
  2. Step 2: Convert to fraction form
    100,926.27/139,277.61 = 55,603.21/x
  3. Step 3: Cross multiply
    100,926.27x = 139,277.61 × 55,603.21
  4. Step 4: Simplify right side
    100,926.27x = 7,744,281,570.92
  5. Step 5: Solve for x
    x = 7,744,281,570.92/100,926.27
  6. Step 6: Final answer
    x = 76,732.07

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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.