Home / 108,048.36-149,078.16-69,299.58

Finding the Fourth Proportional to 108,048.36, 149,078.16 and 69,299.58

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Solution

The fourth proportional to 108,048.36, 149,078.16 and 69,299.58 is: 95,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,048.36 : 149,078.16 = 69,299.58 : x
  2. Step 2: Convert to fraction form
    108,048.36/149,078.16 = 69,299.58/x
  3. Step 3: Cross multiply
    108,048.36x = 149,078.16 × 69,299.58
  4. Step 4: Simplify right side
    108,048.36x = 10,331,053,875.17
  5. Step 5: Solve for x
    x = 10,331,053,875.17/108,048.36
  6. Step 6: Final answer
    x = 95,615.09

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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.