Home / 123,225.36-170,052.21-72,268.26

Finding the Fourth Proportional to 123,225.36, 170,052.21 and 72,268.26

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Solution

The fourth proportional to 123,225.36, 170,052.21 and 72,268.26 is: 99,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,225.36 : 170,052.21 = 72,268.26 : x
  2. Step 2: Convert to fraction form
    123,225.36/170,052.21 = 72,268.26/x
  3. Step 3: Cross multiply
    123,225.36x = 170,052.21 × 72,268.26
  4. Step 4: Simplify right side
    123,225.36x = 12,289,377,325.85
  5. Step 5: Solve for x
    x = 12,289,377,325.85/123,225.36
  6. Step 6: Final answer
    x = 99,730.91

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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.