Home / 108,128.68-149,165.80-67,822.26

Finding the Fourth Proportional to 108,128.68, 149,165.80 and 67,822.26

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Solution

The fourth proportional to 108,128.68, 149,165.80 and 67,822.26 is: 93,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,128.68 : 149,165.80 = 67,822.26 : x
  2. Step 2: Convert to fraction form
    108,128.68/149,165.80 = 67,822.26/x
  3. Step 3: Cross multiply
    108,128.68x = 149,165.80 × 67,822.26
  4. Step 4: Simplify right side
    108,128.68x = 10,116,761,670.71
  5. Step 5: Solve for x
    x = 10,116,761,670.71/108,128.68
  6. Step 6: Final answer
    x = 93,562.24

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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.