Home / 140,559.83-193,985.91-76,907.19

Finding the Fourth Proportional to 140,559.83, 193,985.91 and 76,907.19

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Solution

The fourth proportional to 140,559.83, 193,985.91 and 76,907.19 is: 106,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,559.83 : 193,985.91 = 76,907.19 : x
  2. Step 2: Convert to fraction form
    140,559.83/193,985.91 = 76,907.19/x
  3. Step 3: Cross multiply
    140,559.83x = 193,985.91 × 76,907.19
  4. Step 4: Simplify right side
    140,559.83x = 14,918,911,237.69
  5. Step 5: Solve for x
    x = 14,918,911,237.69/140,559.83
  6. Step 6: Final answer
    x = 106,139.23

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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.