Home / 236,679.19-355,068.67-76,742.66

Finding the Fourth Proportional to 236,679.19, 355,068.67 and 76,742.66

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Solution

The fourth proportional to 236,679.19, 355,068.67 and 76,742.66 is: 115,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,679.19 : 355,068.67 = 76,742.66 : x
  2. Step 2: Convert to fraction form
    236,679.19/355,068.67 = 76,742.66/x
  3. Step 3: Cross multiply
    236,679.19x = 355,068.67 × 76,742.66
  4. Step 4: Simplify right side
    236,679.19x = 27,248,914,218.46
  5. Step 5: Solve for x
    x = 27,248,914,218.46/236,679.19
  6. Step 6: Final answer
    x = 115,130.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.