Home / 129,413.16-193,981.50-92,364.84

Finding the Fourth Proportional to 129,413.16, 193,981.50 and 92,364.84

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Solution

The fourth proportional to 129,413.16, 193,981.50 and 92,364.84 is: 138,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,413.16 : 193,981.50 = 92,364.84 : x
  2. Step 2: Convert to fraction form
    129,413.16/193,981.50 = 92,364.84/x
  3. Step 3: Cross multiply
    129,413.16x = 193,981.50 × 92,364.84
  4. Step 4: Simplify right side
    129,413.16x = 17,917,070,210.46
  5. Step 5: Solve for x
    x = 17,917,070,210.46/129,413.16
  6. Step 6: Final answer
    x = 138,448.60

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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.