Home / 151,729.36-209,457.38-88,054.86

Finding the Fourth Proportional to 151,729.36, 209,457.38 and 88,054.86

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Solution

The fourth proportional to 151,729.36, 209,457.38 and 88,054.86 is: 121,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,729.36 : 209,457.38 = 88,054.86 : x
  2. Step 2: Convert to fraction form
    151,729.36/209,457.38 = 88,054.86/x
  3. Step 3: Cross multiply
    151,729.36x = 209,457.38 × 88,054.86
  4. Step 4: Simplify right side
    151,729.36x = 18,443,740,271.87
  5. Step 5: Solve for x
    x = 18,443,740,271.87/151,729.36
  6. Step 6: Final answer
    x = 121,556.83

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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.