Home / 151,525.08-209,101.32-87,868.80

Finding the Fourth Proportional to 151,525.08, 209,101.32 and 87,868.80

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Solution

The fourth proportional to 151,525.08, 209,101.32 and 87,868.80 is: 121,257.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,525.08 : 209,101.32 = 87,868.80 : x
  2. Step 2: Convert to fraction form
    151,525.08/209,101.32 = 87,868.80/x
  3. Step 3: Cross multiply
    151,525.08x = 209,101.32 × 87,868.80
  4. Step 4: Simplify right side
    151,525.08x = 18,373,482,066.82
  5. Step 5: Solve for x
    x = 18,373,482,066.82/151,525.08
  6. Step 6: Final answer
    x = 121,257.04

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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.