Home / 108,382.19-149,607.54-81,602.37

Finding the Fourth Proportional to 108,382.19, 149,607.54 and 81,602.37

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Solution

The fourth proportional to 108,382.19, 149,607.54 and 81,602.37 is: 112,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,382.19 : 149,607.54 = 81,602.37 : x
  2. Step 2: Convert to fraction form
    108,382.19/149,607.54 = 81,602.37/x
  3. Step 3: Cross multiply
    108,382.19x = 149,607.54 × 81,602.37
  4. Step 4: Simplify right side
    108,382.19x = 12,208,329,833.87
  5. Step 5: Solve for x
    x = 12,208,329,833.87/108,382.19
  6. Step 6: Final answer
    x = 112,641.48

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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.