Home / 100,845.63-139,170.30-55,526.94

Finding the Fourth Proportional to 100,845.63, 139,170.30 and 55,526.94

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Solution

The fourth proportional to 100,845.63, 139,170.30 and 55,526.94 is: 76,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,845.63 : 139,170.30 = 55,526.94 : x
  2. Step 2: Convert to fraction form
    100,845.63/139,170.30 = 55,526.94/x
  3. Step 3: Cross multiply
    100,845.63x = 139,170.30 × 55,526.94
  4. Step 4: Simplify right side
    100,845.63x = 7,727,700,897.88
  5. Step 5: Solve for x
    x = 7,727,700,897.88/100,845.63
  6. Step 6: Final answer
    x = 76,629.01

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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.