Home / 98,208.68-135,528.90-55,768.16

Finding the Fourth Proportional to 98,208.68, 135,528.90 and 55,768.16

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Solution

The fourth proportional to 98,208.68, 135,528.90 and 55,768.16 is: 76,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,208.68 : 135,528.90 = 55,768.16 : x
  2. Step 2: Convert to fraction form
    98,208.68/135,528.90 = 55,768.16/x
  3. Step 3: Cross multiply
    98,208.68x = 135,528.90 × 55,768.16
  4. Step 4: Simplify right side
    98,208.68x = 7,558,197,379.82
  5. Step 5: Solve for x
    x = 7,558,197,379.82/98,208.68
  6. Step 6: Final answer
    x = 76,960.58

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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.