Home / 135,921.84-187,573.32-79,322.16

Finding the Fourth Proportional to 135,921.84, 187,573.32 and 79,322.16

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Solution

The fourth proportional to 135,921.84, 187,573.32 and 79,322.16 is: 109,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,921.84 : 187,573.32 = 79,322.16 : x
  2. Step 2: Convert to fraction form
    135,921.84/187,573.32 = 79,322.16/x
  3. Step 3: Cross multiply
    135,921.84x = 187,573.32 × 79,322.16
  4. Step 4: Simplify right side
    135,921.84x = 14,878,720,900.77
  5. Step 5: Solve for x
    x = 14,878,720,900.77/135,921.84
  6. Step 6: Final answer
    x = 109,465.27

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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.