Home / 140,572.07-193,994.30-76,909.87

Finding the Fourth Proportional to 140,572.07, 193,994.30 and 76,909.87

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Solution

The fourth proportional to 140,572.07, 193,994.30 and 76,909.87 is: 106,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,572.07 : 193,994.30 = 76,909.87 : x
  2. Step 2: Convert to fraction form
    140,572.07/193,994.30 = 76,909.87/x
  3. Step 3: Cross multiply
    140,572.07x = 193,994.30 × 76,909.87
  4. Step 4: Simplify right side
    140,572.07x = 14,920,075,524.21
  5. Step 5: Solve for x
    x = 14,920,075,524.21/140,572.07
  6. Step 6: Final answer
    x = 106,138.26

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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.