Home / 98,134.17-135,424.77-55,107.69

Finding the Fourth Proportional to 98,134.17, 135,424.77 and 55,107.69

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Solution

The fourth proportional to 98,134.17, 135,424.77 and 55,107.69 is: 76,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,134.17 : 135,424.77 = 55,107.69 : x
  2. Step 2: Convert to fraction form
    98,134.17/135,424.77 = 55,107.69/x
  3. Step 3: Cross multiply
    98,134.17x = 135,424.77 × 55,107.69
  4. Step 4: Simplify right side
    98,134.17x = 7,462,946,243.48
  5. Step 5: Solve for x
    x = 7,462,946,243.48/98,134.17
  6. Step 6: Final answer
    x = 76,048.40

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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.