Home / 98,130.83-135,420.16-55,104.34

Finding the Fourth Proportional to 98,130.83, 135,420.16 and 55,104.34

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Solution

The fourth proportional to 98,130.83, 135,420.16 and 55,104.34 is: 76,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,130.83 : 135,420.16 = 55,104.34 : x
  2. Step 2: Convert to fraction form
    98,130.83/135,420.16 = 55,104.34/x
  3. Step 3: Cross multiply
    98,130.83x = 135,420.16 × 55,104.34
  4. Step 4: Simplify right side
    98,130.83x = 7,462,237,724.63
  5. Step 5: Solve for x
    x = 7,462,237,724.63/98,130.83
  6. Step 6: Final answer
    x = 76,043.76

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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.