Home / 152,090.22-209,900.26-87,561.74

Finding the Fourth Proportional to 152,090.22, 209,900.26 and 87,561.74

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Solution

The fourth proportional to 152,090.22, 209,900.26 and 87,561.74 is: 120,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,090.22 : 209,900.26 = 87,561.74 : x
  2. Step 2: Convert to fraction form
    152,090.22/209,900.26 = 87,561.74/x
  3. Step 3: Cross multiply
    152,090.22x = 209,900.26 × 87,561.74
  4. Step 4: Simplify right side
    152,090.22x = 18,379,232,626.26
  5. Step 5: Solve for x
    x = 18,379,232,626.26/152,090.22
  6. Step 6: Final answer
    x = 120,844.27

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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.