Home / 102,069.48-140,860.57-56,752.12

Finding the Fourth Proportional to 102,069.48, 140,860.57 and 56,752.12

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Solution

The fourth proportional to 102,069.48, 140,860.57 and 56,752.12 is: 78,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,069.48 : 140,860.57 = 56,752.12 : x
  2. Step 2: Convert to fraction form
    102,069.48/140,860.57 = 56,752.12/x
  3. Step 3: Cross multiply
    102,069.48x = 140,860.57 × 56,752.12
  4. Step 4: Simplify right side
    102,069.48x = 7,994,135,267.61
  5. Step 5: Solve for x
    x = 7,994,135,267.61/102,069.48
  6. Step 6: Final answer
    x = 78,320.53

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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.