Home / 98,352.36-135,738.18-55,921.32

Finding the Fourth Proportional to 98,352.36, 135,738.18 and 55,921.32

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Solution

The fourth proportional to 98,352.36, 135,738.18 and 55,921.32 is: 77,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,352.36 : 135,738.18 = 55,921.32 : x
  2. Step 2: Convert to fraction form
    98,352.36/135,738.18 = 55,921.32/x
  3. Step 3: Cross multiply
    98,352.36x = 135,738.18 × 55,921.32
  4. Step 4: Simplify right side
    98,352.36x = 7,590,658,200.00
  5. Step 5: Solve for x
    x = 7,590,658,200.00/98,352.36
  6. Step 6: Final answer
    x = 77,178.20

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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.