Home / 123,590.63-170,573.25-78,272.82

Finding the Fourth Proportional to 123,590.63, 170,573.25 and 78,272.82

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Solution

The fourth proportional to 123,590.63, 170,573.25 and 78,272.82 is: 108,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,590.63 : 170,573.25 = 78,272.82 : x
  2. Step 2: Convert to fraction form
    123,590.63/170,573.25 = 78,272.82/x
  3. Step 3: Cross multiply
    123,590.63x = 170,573.25 × 78,272.82
  4. Step 4: Simplify right side
    123,590.63x = 13,351,249,294.07
  5. Step 5: Solve for x
    x = 13,351,249,294.07/123,590.63
  6. Step 6: Final answer
    x = 108,028.01

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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.