Home / 140,570.64-193,985.76-76,907.52

Finding the Fourth Proportional to 140,570.64, 193,985.76 and 76,907.52

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Solution

The fourth proportional to 140,570.64, 193,985.76 and 76,907.52 is: 106,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,570.64 : 193,985.76 = 76,907.52 : x
  2. Step 2: Convert to fraction form
    140,570.64/193,985.76 = 76,907.52/x
  3. Step 3: Cross multiply
    140,570.64x = 193,985.76 × 76,907.52
  4. Step 4: Simplify right side
    140,570.64x = 14,918,963,716.92
  5. Step 5: Solve for x
    x = 14,918,963,716.92/140,570.64
  6. Step 6: Final answer
    x = 106,131.43

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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.