Home / 157,413.60-236,120.40-86,554.80

Finding the Fourth Proportional to 157,413.60, 236,120.40 and 86,554.80

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Solution

The fourth proportional to 157,413.60, 236,120.40 and 86,554.80 is: 129,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,413.60 : 236,120.40 = 86,554.80 : x
  2. Step 2: Convert to fraction form
    157,413.60/236,120.40 = 86,554.80/x
  3. Step 3: Cross multiply
    157,413.60x = 236,120.40 × 86,554.80
  4. Step 4: Simplify right side
    157,413.60x = 20,437,353,997.92
  5. Step 5: Solve for x
    x = 20,437,353,997.92/157,413.60
  6. Step 6: Final answer
    x = 129,832.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.