Home / 99,269.37-136,994.36-56,841.57

Finding the Fourth Proportional to 99,269.37, 136,994.36 and 56,841.57

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Solution

The fourth proportional to 99,269.37, 136,994.36 and 56,841.57 is: 78,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,269.37 : 136,994.36 = 56,841.57 : x
  2. Step 2: Convert to fraction form
    99,269.37/136,994.36 = 56,841.57/x
  3. Step 3: Cross multiply
    99,269.37x = 136,994.36 × 56,841.57
  4. Step 4: Simplify right side
    99,269.37x = 7,786,974,219.34
  5. Step 5: Solve for x
    x = 7,786,974,219.34/99,269.37
  6. Step 6: Final answer
    x = 78,442.87

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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.