Home / 112,703.23-155,530.71-61,020.88

Finding the Fourth Proportional to 112,703.23, 155,530.71 and 61,020.88

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Solution

The fourth proportional to 112,703.23, 155,530.71 and 61,020.88 is: 84,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,703.23 : 155,530.71 = 61,020.88 : x
  2. Step 2: Convert to fraction form
    112,703.23/155,530.71 = 61,020.88/x
  3. Step 3: Cross multiply
    112,703.23x = 155,530.71 × 61,020.88
  4. Step 4: Simplify right side
    112,703.23x = 9,490,620,791.22
  5. Step 5: Solve for x
    x = 9,490,620,791.22/112,703.23
  6. Step 6: Final answer
    x = 84,208.95

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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.