Home / 151,763.39-209,440.26-87,253.55

Finding the Fourth Proportional to 151,763.39, 209,440.26 and 87,253.55

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Solution

The fourth proportional to 151,763.39, 209,440.26 and 87,253.55 is: 120,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,763.39 : 209,440.26 = 87,253.55 : x
  2. Step 2: Convert to fraction form
    151,763.39/209,440.26 = 87,253.55/x
  3. Step 3: Cross multiply
    151,763.39x = 209,440.26 × 87,253.55
  4. Step 4: Simplify right side
    151,763.39x = 18,274,406,868.82
  5. Step 5: Solve for x
    x = 18,274,406,868.82/151,763.39
  6. Step 6: Final answer
    x = 120,413.80

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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.