Home / 137,159.02-189,203.24-79,791.89

Finding the Fourth Proportional to 137,159.02, 189,203.24 and 79,791.89

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Solution

The fourth proportional to 137,159.02, 189,203.24 and 79,791.89 is: 110,068.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,159.02 : 189,203.24 = 79,791.89 : x
  2. Step 2: Convert to fraction form
    137,159.02/189,203.24 = 79,791.89/x
  3. Step 3: Cross multiply
    137,159.02x = 189,203.24 × 79,791.89
  4. Step 4: Simplify right side
    137,159.02x = 15,096,883,367.19
  5. Step 5: Solve for x
    x = 15,096,883,367.19/137,159.02
  6. Step 6: Final answer
    x = 110,068.47

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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.