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Finding the Fourth Proportional to 152,778.42, 210,831.04 and 84,791.41

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Solution

The fourth proportional to 152,778.42, 210,831.04 and 84,791.41 is: 117,010.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,778.42 : 210,831.04 = 84,791.41 : x
  2. Step 2: Convert to fraction form
    152,778.42/210,831.04 = 84,791.41/x
  3. Step 3: Cross multiply
    152,778.42x = 210,831.04 × 84,791.41
  4. Step 4: Simplify right side
    152,778.42x = 17,876,661,153.37
  5. Step 5: Solve for x
    x = 17,876,661,153.37/152,778.42
  6. Step 6: Final answer
    x = 117,010.38

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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.