Home / 152,381.25-210,274.67-87,804.61

Finding the Fourth Proportional to 152,381.25, 210,274.67 and 87,804.61

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Solution

The fourth proportional to 152,381.25, 210,274.67 and 87,804.61 is: 121,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,381.25 : 210,274.67 = 87,804.61 : x
  2. Step 2: Convert to fraction form
    152,381.25/210,274.67 = 87,804.61/x
  3. Step 3: Cross multiply
    152,381.25x = 210,274.67 × 87,804.61
  4. Step 4: Simplify right side
    152,381.25x = 18,463,085,392.23
  5. Step 5: Solve for x
    x = 18,463,085,392.23/152,381.25
  6. Step 6: Final answer
    x = 121,163.76

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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.