Home / 98,130.45-135,412.32-55,688.97

Finding the Fourth Proportional to 98,130.45, 135,412.32 and 55,688.97

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Solution

The fourth proportional to 98,130.45, 135,412.32 and 55,688.97 is: 76,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,130.45 : 135,412.32 = 55,688.97 : x
  2. Step 2: Convert to fraction form
    98,130.45/135,412.32 = 55,688.97/x
  3. Step 3: Cross multiply
    98,130.45x = 135,412.32 × 55,688.97
  4. Step 4: Simplify right side
    98,130.45x = 7,540,972,626.11
  5. Step 5: Solve for x
    x = 7,540,972,626.11/98,130.45
  6. Step 6: Final answer
    x = 76,846.41

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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.