Home / 98,790.40-148,531.20-96,716.80

Finding the Fourth Proportional to 98,790.40, 148,531.20 and 96,716.80

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Solution

The fourth proportional to 98,790.40, 148,531.20 and 96,716.80 is: 145,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,790.40 : 148,531.20 = 96,716.80 : x
  2. Step 2: Convert to fraction form
    98,790.40/148,531.20 = 96,716.80/x
  3. Step 3: Cross multiply
    98,790.40x = 148,531.20 × 96,716.80
  4. Step 4: Simplify right side
    98,790.40x = 14,365,462,364.16
  5. Step 5: Solve for x
    x = 14,365,462,364.16/98,790.40
  6. Step 6: Final answer
    x = 145,413.55

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1.5x scale

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.