Home / 151,735.93-209,364.32-87,192.70

Finding the Fourth Proportional to 151,735.93, 209,364.32 and 87,192.70

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Solution

The fourth proportional to 151,735.93, 209,364.32 and 87,192.70 is: 120,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,735.93 : 209,364.32 = 87,192.70 : x
  2. Step 2: Convert to fraction form
    151,735.93/209,364.32 = 87,192.70/x
  3. Step 3: Cross multiply
    151,735.93x = 209,364.32 × 87,192.70
  4. Step 4: Simplify right side
    151,735.93x = 18,255,040,039.03
  5. Step 5: Solve for x
    x = 18,255,040,039.03/151,735.93
  6. Step 6: Final answer
    x = 120,307.96

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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.