Home / 101,285.10-139,769.87-55,962.27

Finding the Fourth Proportional to 101,285.10, 139,769.87 and 55,962.27

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Solution

The fourth proportional to 101,285.10, 139,769.87 and 55,962.27 is: 77,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,285.10 : 139,769.87 = 55,962.27 : x
  2. Step 2: Convert to fraction form
    101,285.10/139,769.87 = 55,962.27/x
  3. Step 3: Cross multiply
    101,285.10x = 139,769.87 × 55,962.27
  4. Step 4: Simplify right side
    101,285.10x = 7,821,838,922.99
  5. Step 5: Solve for x
    x = 7,821,838,922.99/101,285.10
  6. Step 6: Final answer
    x = 77,225.96

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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.