Home / 112,621.32-168,965.70-65,225.37

Finding the Fourth Proportional to 112,621.32, 168,965.70 and 65,225.37

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Solution

The fourth proportional to 112,621.32, 168,965.70 and 65,225.37 is: 97,857.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,621.32 : 168,965.70 = 65,225.37 : x
  2. Step 2: Convert to fraction form
    112,621.32/168,965.70 = 65,225.37/x
  3. Step 3: Cross multiply
    112,621.32x = 168,965.70 × 65,225.37
  4. Step 4: Simplify right side
    112,621.32x = 11,020,850,299.81
  5. Step 5: Solve for x
    x = 11,020,850,299.81/112,621.32
  6. Step 6: Final answer
    x = 97,857.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.