Home / 151,570.06-209,166.55-87,043.52

Finding the Fourth Proportional to 151,570.06, 209,166.55 and 87,043.52

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Solution

The fourth proportional to 151,570.06, 209,166.55 and 87,043.52 is: 120,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,570.06 : 209,166.55 = 87,043.52 : x
  2. Step 2: Convert to fraction form
    151,570.06/209,166.55 = 87,043.52/x
  3. Step 3: Cross multiply
    151,570.06x = 209,166.55 × 87,043.52
  4. Step 4: Simplify right side
    151,570.06x = 18,206,592,778.26
  5. Step 5: Solve for x
    x = 18,206,592,778.26/151,570.06
  6. Step 6: Final answer
    x = 120,119.98

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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.