Home / 258,019.06-387,073.95-117,791.86

Finding the Fourth Proportional to 258,019.06, 387,073.95 and 117,791.86

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Solution

The fourth proportional to 258,019.06, 387,073.95 and 117,791.86 is: 176,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,019.06 : 387,073.95 = 117,791.86 : x
  2. Step 2: Convert to fraction form
    258,019.06/387,073.95 = 117,791.86/x
  3. Step 3: Cross multiply
    258,019.06x = 387,073.95 × 117,791.86
  4. Step 4: Simplify right side
    258,019.06x = 45,594,160,528.05
  5. Step 5: Solve for x
    x = 45,594,160,528.05/258,019.06
  6. Step 6: Final answer
    x = 176,708.50

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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.