Home / 103,981.60-143,494.14-56,234.98

Finding the Fourth Proportional to 103,981.60, 143,494.14 and 56,234.98

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Solution

The fourth proportional to 103,981.60, 143,494.14 and 56,234.98 is: 77,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,981.60 : 143,494.14 = 56,234.98 : x
  2. Step 2: Convert to fraction form
    103,981.60/143,494.14 = 56,234.98/x
  3. Step 3: Cross multiply
    103,981.60x = 143,494.14 × 56,234.98
  4. Step 4: Simplify right side
    103,981.60x = 8,069,390,093.02
  5. Step 5: Solve for x
    x = 8,069,390,093.02/103,981.60
  6. Step 6: Final answer
    x = 77,604.02

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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.