Home / 104,688.09-144,617.54-81,118.71

Finding the Fourth Proportional to 104,688.09, 144,617.54 and 81,118.71

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Solution

The fourth proportional to 104,688.09, 144,617.54 and 81,118.71 is: 112,058.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,688.09 : 144,617.54 = 81,118.71 : x
  2. Step 2: Convert to fraction form
    104,688.09/144,617.54 = 81,118.71/x
  3. Step 3: Cross multiply
    104,688.09x = 144,617.54 × 81,118.71
  4. Step 4: Simplify right side
    104,688.09x = 11,731,187,882.58
  5. Step 5: Solve for x
    x = 11,731,187,882.58/104,688.09
  6. Step 6: Final answer
    x = 112,058.48

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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.